{"id":110209,"date":"2025-05-23T11:34:20","date_gmt":"2025-05-23T07:04:20","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/"},"modified":"2025-05-23T11:34:20","modified_gmt":"2025-05-23T07:04:20","slug":"harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/","title":{"rendered":"Harmonyos \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u0628\u0639\u062f\u06cc \u0648 \u06a9\u0627\u0631\u0628\u0631\u062f \u0639\u0645\u0644\u06cc \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u062f\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0645\u062c\u0645\u0648\u0639\u0647"},"content":{"rendered":"<div data-article-id=\"2517188\" id=\"article-body\">\n<blockquote>\n<p>\u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0634\u06cc\u0648\u0647 \u0647\u0627\u06cc \u062e\u0627\u0635 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0648 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u062f\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u062f\u0631 \u0647\u0627\u0631\u0645\u0648\u0646\u06cc\u0648\u0633 \u0628\u0639\u062f\u06cc \u0645\u06cc \u067e\u0631\u062f\u0627\u0632\u062f \u060c \u0648 \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0639\u0637\u06cc\u0644\u06cc \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0645\u0646\u0637\u0642 \u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0622\u0645\u062f \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0646\u0645\u0648\u0646\u0647 \u0647\u0627\u06cc \u06a9\u062f \u0631\u0627 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0627\u0632 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u063a\u06cc\u0631\u0642\u0627\u0646\u0648\u0646\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0634\u0648\u062f.<\/p>\n<\/blockquote>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u062a\u063a\u06cc\u06cc\u0631 \u0648\u0636\u0639\u06cc\u062a \u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#1_%D9%81%DB%8C%D9%84%D8%AA%D8%B1_%D9%88_%D8%AA%D8%A8%D8%AF%DB%8C%D9%84_%D9%85%D8%AC%D9%85%D9%88%D8%B9%D9%87_%D8%B4%D8%B1%D8%A7%DB%8C%D8%B7_%D9%BE%D9%88%DB%8C%D8%A7_%D8%AA%D8%B9%D8%B7%DB%8C%D9%84%DB%8C\" >1. \u0641\u06cc\u0644\u062a\u0631 \u0648 \u062a\u0628\u062f\u06cc\u0644 \u0645\u062c\u0645\u0648\u0639\u0647: \u0634\u0631\u0627\u06cc\u0637 \u067e\u0648\u06cc\u0627 \u062a\u0639\u0637\u06cc\u0644\u06cc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#11_%D8%B9%D9%86%D8%A7%D8%B5%D8%B1_%D8%AC%D9%85%D8%B9_%D8%A2%D9%88%D8%B1%DB%8C_%D8%AF%DB%8C%D9%86%D8%A7%D9%85%DB%8C%DA%A9%DB%8C_%D9%81%DB%8C%D9%84%D8%AA%D8%B1\" >1.1 \u0639\u0646\u0627\u0635\u0631 \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc \u0641\u06cc\u0644\u062a\u0631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#12_%D8%AA%D8%A8%D8%AF%DB%8C%D9%84_%D9%88_%D9%86%D9%82%D8%B4%D9%87_%D8%A8%D8%B1%D8%AF%D8%A7%D8%B1%DB%8C_%D9%86%D9%88%D8%B9\" >1.2 \u062a\u0628\u062f\u06cc\u0644 \u0648 \u0646\u0642\u0634\u0647 \u0628\u0631\u062f\u0627\u0631\u06cc \u0646\u0648\u0639<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#2_%D9%85%D8%B1%D8%AA%D8%A8_%D8%B3%D8%A7%D8%B2%DB%8C_%D9%88_%D9%81%D8%AF%D8%A7%DA%A9%D8%A7%D8%B1%DB%8C_%D9%85%D8%AC%D9%85%D9%88%D8%B9%D9%87_%D9%87%D9%85%D8%A7%D9%87%D9%86%DA%AF%DB%8C_%D8%A8%DB%8C%D9%86_%D8%AA%D9%88%D8%A7%D8%A8%D8%B9_%D8%AE%D8%A7%D9%84%D8%B5_%D9%88_%D8%AA%D8%B9%D8%B7%DB%8C%D9%84%DB%8C\" >2. \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0648 \u0641\u062f\u0627\u06a9\u0627\u0631\u06cc \u0645\u062c\u0645\u0648\u0639\u0647: \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0628\u06cc\u0646 \u062a\u0648\u0627\u0628\u0639 \u062e\u0627\u0644\u0635 \u0648 \u062a\u0639\u0637\u06cc\u0644\u06cc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#21_%D9%82%D9%88%D8%A7%D9%86%DB%8C%D9%86_%D9%85%D8%B1%D8%AA%D8%A8_%D8%B3%D8%A7%D8%B2%DB%8C_%D8%B3%D9%81%D8%A7%D8%B1%D8%B4%DB%8C\" >2.1 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#22_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86_%D9%85%D9%86%D8%B7%D9%82_deduplication\" >2.2 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0645\u0646\u0637\u0642 deduplication<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#3_%DA%A9%D8%A7%D9%87%D8%B4_%D9%88_%D8%AA%D8%AC%D9%85%D8%B9_%D8%AA%D8%AC%D9%85%D8%B9_%D8%AD%D8%A7%D9%84%D8%AA_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86\" >3. \u06a9\u0627\u0647\u0634 \u0648 \u062a\u062c\u0645\u0639: \u062a\u062c\u0645\u0639 \u062d\u0627\u0644\u062a \u0628\u0633\u062a\u0647 \u0634\u062f\u0646<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#31_%D9%85%D8%AD%D8%A7%D8%B3%D8%A8%D9%87_%D8%AA%D8%AC%D9%85%D8%B9_%D8%B9%D8%AF%D8%AF%DB%8C\" >3.1 \u0645\u062d\u0627\u0633\u0628\u0647 \u062a\u062c\u0645\u0639 \u0639\u062f\u062f\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#32_%D8%AA%D8%AC%D9%85%D8%B9_%D8%B4%DB%8C_%D9%BE%DB%8C%DA%86%DB%8C%D8%AF%D9%87\" >3.2 \u062a\u062c\u0645\u0639 \u0634\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#4_%D8%A8%D9%87%DB%8C%D9%86%D9%87_%D8%B3%D8%A7%D8%B2%DB%8C_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF_%D9%88_%D8%A7%D9%82%D8%AF%D8%A7%D9%85%D8%A7%D8%AA_%D8%A7%D8%AD%D8%AA%DB%8C%D8%A7%D8%B7%DB%8C\" >4. \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u0627\u0642\u062f\u0627\u0645\u0627\u062a \u0627\u062d\u062a\u06cc\u0627\u0637\u06cc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#41_%D8%A7%D8%B2_%D8%B9%D9%85%D9%84%DB%8C%D8%A7%D8%AA_%D8%BA%DB%8C%D8%B1_%D8%B6%D8%B1%D9%88%D8%B1%DB%8C_%D8%AF%D8%B1_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86_%D8%AE%D9%88%D8%AF%D8%AF%D8%A7%D8%B1%DB%8C_%DA%A9%D9%86%DB%8C%D8%AF\" >4.1 \u0627\u0632 \u0639\u0645\u0644\u06cc\u0627\u062a \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u062f\u0631 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u062e\u0648\u062f\u062f\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#42_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%AA%D8%B1%D8%AC%DB%8C%D8%AD%DB%8C_%D8%A7%D8%B2_%D8%AA%D9%88%D8%A7%D8%A8%D8%B9_%D9%85%D8%B1%D8%AA%D8%A8%D9%87_%D8%A8%D8%A7%D9%84%D8%A7%D8%AA%D8%B1_%D8%AF%D8%A7%D8%AE%D9%84%DB%8C\" >4.2 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062a\u0631\u062c\u06cc\u062d\u06cc \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0645\u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627\u062a\u0631 \u062f\u0627\u062e\u0644\u06cc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/nabfollower.com\/blog\/harmonyos-next-functional-programming-and-practical-application-of-closures-in-collection-operations-3gf3\/#5_%D8%AE%D9%84%D8%A7%D8%B5%D9%87_%D9%85%D9%82%D8%AF%D8%A7%D8%B1_%D8%A7%D8%B5%D9%84%DB%8C_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF%DB%8C_%D8%AF%D8%B1_%D8%B9%D9%85%D9%84%DB%8C%D8%A7%D8%AA_%D9%85%D8%AC%D9%85%D9%88%D8%B9%D9%87\" >5. \u062e\u0644\u0627\u0635\u0647: \u0645\u0642\u062f\u0627\u0631 \u0627\u0635\u0644\u06cc \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u062f\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0645\u062c\u0645\u0648\u0639\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1_%D9%81%DB%8C%D9%84%D8%AA%D8%B1_%D9%88_%D8%AA%D8%A8%D8%AF%DB%8C%D9%84_%D9%85%D8%AC%D9%85%D9%88%D8%B9%D9%87_%D8%B4%D8%B1%D8%A7%DB%8C%D8%B7_%D9%BE%D9%88%DB%8C%D8%A7_%D8%AA%D8%B9%D8%B7%DB%8C%D9%84%DB%8C\"><\/span>\n<p>  1. \u0641\u06cc\u0644\u062a\u0631 \u0648 \u062a\u0628\u062f\u06cc\u0644 \u0645\u062c\u0645\u0648\u0639\u0647: \u0634\u0631\u0627\u06cc\u0637 \u067e\u0648\u06cc\u0627 \u062a\u0639\u0637\u06cc\u0644\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0646\u06af\u0627\u0645 \u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u0645\u0627\u0646\u0646\u062f \u0622\u0631\u0627\u06cc\u0647 \u0647\u0627 \u0648 \u0644\u06cc\u0633\u062a \u0647\u0627 \u060c \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0647 \u0635\u0648\u0631\u062a \u067e\u0648\u06cc\u0627 \u0634\u0631\u0627\u06cc\u0637 \u0641\u06cc\u0644\u062a\u0631 \u06cc\u0627 \u0642\u0648\u0627\u0646\u06cc\u0646 \u062a\u0628\u062f\u06cc\u0644 \u0631\u0627 \u0636\u0628\u0637 \u06a9\u0646\u0646\u062f \u060c \u0645\u0646\u0637\u0642 \u06a9\u0633\u0628 \u0648 \u06a9\u0627\u0631 \u0631\u0627 \u0627\u0632 \u0639\u0645\u0644\u06cc\u0627\u062a \u062f\u0627\u062f\u0647 \u062c\u062f\u0627 \u06a9\u0631\u062f\u0647 \u0648 \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u062c\u062f\u062f \u0627\u0632 \u06a9\u062f \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u0628\u062e\u0634\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"11_%D8%B9%D9%86%D8%A7%D8%B5%D8%B1_%D8%AC%D9%85%D8%B9_%D8%A2%D9%88%D8%B1%DB%8C_%D8%AF%DB%8C%D9%86%D8%A7%D9%85%DB%8C%DA%A9%DB%8C_%D9%81%DB%8C%D9%84%D8%AA%D8%B1\"><\/span>\n<p>  1.1 \u0639\u0646\u0627\u0635\u0631 \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc \u0641\u06cc\u0644\u062a\u0631<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0645\u0646\u0637\u0642 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0631\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0639\u0645\u0644\u06a9\u0631\u062f \u06a9\u0627\u0631\u062e\u0627\u0646\u0647 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0645\u062d\u0627\u0635\u0631\u0647 \u06a9\u0646\u06cc\u062f <code>createFilter<\/code>\u060c \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0634\u0631\u0627\u06cc\u0637 \u0645\u062e\u062a\u0644\u0641 \u0641\u06cc\u0644\u062a\u0631 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0645\u0646\u062a\u0642\u0644 \u0634\u0648\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ Closure factory: Generate generic filtering functions<\/span>\n<span class=\"nx\">func<\/span> <span class=\"nx\">createFilter<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"nx\">predicate<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">T<\/span><span class=\"p\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"nx\">Bool<\/span><span class=\"p\">):<\/span> <span class=\"p\">(<\/span><span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>  \n  <span class=\"k\">return<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">array<\/span> <span class=\"k\">in<\/span> <span class=\"nx\">array<\/span><span class=\"p\">.<\/span><span class=\"nf\">filter<\/span><span class=\"p\">(<\/span><span class=\"nx\">predicate<\/span><span class=\"p\">)<\/span> <span class=\"p\">}<\/span>  \n<span class=\"p\">}<\/span>  \n\n<span class=\"c1\">\/\/ Business scenario: Filter long text in string array (length&gt;5)<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">texts<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">apple<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">banana<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">cherry<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">date<\/span><span class=\"dl\">\"<\/span><span class=\"p\">]<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">longTextFilter<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">createFilter<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">$0<\/span><span class=\"p\">.<\/span><span class=\"nx\">length<\/span> <span class=\"o\">&gt;<\/span> <span class=\"mi\">5<\/span> <span class=\"p\">}<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">result<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">longTextFilter<\/span><span class=\"p\">(<\/span><span class=\"nx\">texts<\/span><span class=\"p\">)<\/span> <span class=\"c1\">\/\/ Output: [\"banana\", \"cherry\"]<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0646\u06a9\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc<\/strong>:<\/p>\n<ul>\n<li>\u062f\u0631 <code>predicate<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0645\u0633\u0626\u0648\u0644 \u0645\u0646\u0637\u0642 \u0641\u06cc\u0644\u062a\u0631 \u062e\u0627\u0635 \u0627\u0633\u062a \u0648 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0622\u0646 \u062a\u0648\u0633\u0637 <code>createFilter<\/code> \u0645\u0633\u0626\u0648\u0644 \u0627\u0646\u062c\u0627\u0645 \u0641\u06cc\u0644\u062a\u0631 \u0627\u0633\u062a.<\/li>\n<li>\u0627\u0632 \u0634\u0631\u0627\u06cc\u0637 \u0633\u0648\u0626\u06cc\u0686\u06cc\u0646\u06af \u067e\u0648\u06cc\u0627 (\u0645\u0627\u0646\u0646\u062f \u062a\u0639\u0648\u06cc\u0636 \u0627\u0632 \u0641\u06cc\u0644\u062a\u0631 \u0637\u0648\u0644 \u0628\u0647 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0644\u0645\u0647 \u06a9\u0644\u06cc\u062f\u06cc) \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u06a9\u0646\u06cc\u062f \u060c \u0628\u062f\u0648\u0646 \u0627\u06cc\u0646\u06a9\u0647 \u0645\u0646\u0637\u0642 \u0627\u062c\u0631\u0627\u06cc \u0641\u06cc\u0644\u062a\u0631 \u0631\u0627 \u0627\u0635\u0644\u0627\u062d \u06a9\u0646\u06cc\u062f.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"12_%D8%AA%D8%A8%D8%AF%DB%8C%D9%84_%D9%88_%D9%86%D9%82%D8%B4%D9%87_%D8%A8%D8%B1%D8%AF%D8%A7%D8%B1%DB%8C_%D9%86%D9%88%D8%B9\"><\/span>\n<p>  1.2 \u062a\u0628\u062f\u06cc\u0644 \u0648 \u0646\u0642\u0634\u0647 \u0628\u0631\u062f\u0627\u0631\u06cc \u0646\u0648\u0639<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u0646\u0648\u0639 \u062a\u0628\u062f\u06cc\u0644 \u0639\u0646\u0627\u0635\u0631 \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u0648 \u0633\u0627\u062e\u062a \u062e\u0637\u0648\u0637 \u0644\u0648\u0644\u0647 \u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0631 \u062a\u0631\u06a9\u06cc\u0628 \u0628\u0627 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u062c\u0631\u06cc\u0627\u0646 \u060c \u0627\u0632 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>|&gt;<\/code>\u0628\u0634\u0631<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ String to integer array (ignoring invalid values)<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">stringNumbers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">1<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">2<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">three<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">4<\/span><span class=\"dl\">\"<\/span><span class=\"p\">]<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">toInt<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span> <span class=\"p\">(<\/span><span class=\"na\">s<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"nx\">Int64<\/span><span class=\"p\">?<\/span> <span class=\"k\">in<\/span> <span class=\"nc\">Int64<\/span><span class=\"p\">(<\/span><span class=\"nx\">s<\/span><span class=\"p\">)<\/span> <span class=\"p\">}<\/span> <span class=\"c1\">\/\/ Closure handling type conversion<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">numbers<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">stringNumbers<\/span>  \n<span class=\"o\">|&gt;<\/span> <span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nx\">toInt<\/span><span class=\"p\">)<\/span> <span class=\"c1\">\/\/ Map as optional integer<\/span>\n<span class=\"o\">|&gt;<\/span> <span class=\"nx\">filter<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">$0<\/span> <span class=\"o\">!=<\/span> <span class=\"nx\">nil<\/span> <span class=\"p\">}<\/span> <span class=\"c1\">\/\/ Filter empty values<\/span>\n<span class=\"o\">|&gt;<\/span> <span class=\"nx\">map<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">$0<\/span><span class=\"o\">!<\/span> <span class=\"p\">}<\/span> <span class=\"c1\">\/\/ Unpacking optional value<\/span>\n\n<span class=\"c1\">\/\/ Output: [1, 2, 4]<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>** \u0645\u0632\u0627\u06cc\u0627\u06cc **:<\/p>\n<ul>\n<li>\u0647\u0631 \u0645\u0631\u062d\u0644\u0647 \u0627\u0632 \u062a\u062d\u0648\u0644 \u0628\u0627 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0645\u0633\u062a\u0642\u0644 \u060c \u06a9\u0647 \u0627\u0632 \u0646\u0638\u0631 \u0645\u0646\u0637\u0642\u06cc \u0648\u0627\u0636\u062d \u0648 \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u062c\u062f\u062f \u0627\u0633\u062a \u060c \u062a\u06a9\u0645\u06cc\u0644 \u0645\u06cc \u0634\u0648\u062f.<\/li>\n<li>\n<code>|&gt;<\/code>  \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u062c\u0631\u06cc\u0627\u0646 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0635\u0631\u06cc \u060c \u0622\u0633\u0627\u0646 \u0628\u0631\u0627\u06cc \u0627\u0634\u06a9\u0627\u0644 \u0632\u062f\u0627\u06cc\u06cc \u0648 \u06af\u0633\u062a\u0631\u0634 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"2_%D9%85%D8%B1%D8%AA%D8%A8_%D8%B3%D8%A7%D8%B2%DB%8C_%D9%88_%D9%81%D8%AF%D8%A7%DA%A9%D8%A7%D8%B1%DB%8C_%D9%85%D8%AC%D9%85%D9%88%D8%B9%D9%87_%D9%87%D9%85%D8%A7%D9%87%D9%86%DA%AF%DB%8C_%D8%A8%DB%8C%D9%86_%D8%AA%D9%88%D8%A7%D8%A8%D8%B9_%D8%AE%D8%A7%D9%84%D8%B5_%D9%88_%D8%AA%D8%B9%D8%B7%DB%8C%D9%84%DB%8C\"><\/span>\n<p>  2. \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0648 \u0641\u062f\u0627\u06a9\u0627\u0631\u06cc \u0645\u062c\u0645\u0648\u0639\u0647: \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0628\u06cc\u0646 \u062a\u0648\u0627\u0628\u0639 \u062e\u0627\u0644\u0635 \u0648 \u062a\u0639\u0637\u06cc\u0644\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062a\u0648\u0627\u0628\u0639 \u062e\u0627\u0644\u0635 \u0627\u0632 \u062a\u0639\u06cc\u06cc\u0646 \u06a9\u0646\u0646\u062f\u0647 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0645\u06cc \u06cc\u0627\u0628\u062f \u060c \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0647\u0627 \u0648\u0638\u06cc\u0641\u0647 \u0636\u0628\u0637 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u067e\u0648\u06cc\u0627 \u0631\u0627 \u062f\u0627\u0631\u0646\u062f \u0648 \u0627\u06cc\u0646 \u062f\u0648 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u06cc \u0627\u0646\u0639\u0637\u0627\u0641 \u067e\u0630\u06cc\u0631 \u062a\u0631\u06a9\u06cc\u0628 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"21_%D9%82%D9%88%D8%A7%D9%86%DB%8C%D9%86_%D9%85%D8%B1%D8%AA%D8%A8_%D8%B3%D8%A7%D8%B2%DB%8C_%D8%B3%D9%81%D8%A7%D8%B1%D8%B4%DB%8C\"><\/span>\n<p>  2.1 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0639\u0628\u0648\u0631 \u0627\u0632 \u0645\u0646\u0637\u0642 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u060c \u0627\u0632 \u062a\u0646\u0638\u06cc\u0645 \u0632\u0645\u0627\u0646 \u062f\u0631 \u062d\u0627\u0644 \u0627\u062c\u0631\u0627 \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc \u0647\u0627\u06cc \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc (\u0645\u0627\u0646\u0646\u062f \u0635\u0639\u0648\u062f \u060c \u0646\u0632\u0648\u0644\u06cc \u0648 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u062f\u0631 \u0632\u0645\u06cc\u0646\u0647 \u0633\u0641\u0627\u0631\u0634\u06cc) \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ Pure functions: general sorter (accepts comparison closures)<\/span>\n<span class=\"nx\">func<\/span> <span class=\"nx\">sort<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"nx\">array<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">,<\/span> <span class=\"nx\">comparator<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">T<\/span><span class=\"p\">,<\/span> <span class=\"nx\">T<\/span><span class=\"p\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"nx\">Bool<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>  \n  <span class=\"k\">return<\/span> <span class=\"nx\">array<\/span><span class=\"p\">.<\/span><span class=\"nf\">sorted<\/span><span class=\"p\">(<\/span><span class=\"na\">by<\/span><span class=\"p\">:<\/span> <span class=\"nx\">comparator<\/span><span class=\"p\">)<\/span>  \n<span class=\"p\">}<\/span>  \n\n<span class=\"c1\">\/\/ Business scenario: Sort by descending order of string length<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">fruits<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">apple<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">grape<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">banana<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">pear<\/span><span class=\"dl\">\"<\/span><span class=\"p\">]<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">sortByLength<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">sort<\/span><span class=\"p\">(<\/span><span class=\"nx\">comparator<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">$0<\/span><span class=\"p\">.<\/span><span class=\"nx\">length<\/span> <span class=\"o\">&gt;<\/span> <span class=\"nx\">$1<\/span><span class=\"p\">.<\/span><span class=\"nx\">length<\/span> <span class=\"p\">})<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">sortedFruits<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">sortByLength<\/span><span class=\"p\">(<\/span><span class=\"nx\">fruits<\/span><span class=\"p\">)<\/span> <span class=\"c1\">\/\/ Output: [\"banana\", \"grape\", \"apple\", \"pear\"]<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0646\u0642\u0627\u0637 \u0637\u0631\u0627\u062d\u06cc<\/strong>:<\/p>\n<ul>\n<li>\u062f\u0631 <code>comparator<\/code> \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0645\u0646\u0637\u0642 \u0645\u0642\u0627\u06cc\u0633\u0647 \u062e\u0627\u0635 \u060c \u0648 <code>sort<\/code> \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0631 \u0631\u0648\u06cc \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u0627\u062c\u0631\u0627 \u0645\u062a\u0645\u0631\u06a9\u0632 \u0627\u0633\u062a.<\/li>\n<li>\u0627\u0632 \u0645\u0631\u062a\u0628 \u0633\u0627\u0632\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 (\u0645\u0627\u0646\u0646\u062f \u0634\u0631\u0627\u06cc\u0637 \u0686\u0646\u062f \u0633\u0637\u062d) \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc \u06a9\u0646\u062f \u060c \u0641\u0642\u0637 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0631\u0627 \u062f\u0631 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0627\u0635\u0644\u0627\u062d \u06a9\u0646\u06cc\u062f.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"22_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86_%D9%85%D9%86%D8%B7%D9%82_deduplication\"><\/span>\n<p>  2.2 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0645\u0646\u0637\u0642 deduplication<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u0631\u0627\u06cc \u062a\u062d\u0642\u0642 \u0628\u062e\u0634\u06cc\u062f\u0646 \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0641\u062f\u0627\u06a9\u0627\u0631\u06cc \u0639\u0645\u0648\u0645\u06cc \u060c \u0627\u0632 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0642\u0636\u0627\u0648\u062a \u0645\u0646\u062d\u0635\u0631 \u0628\u0647 \u0641\u0631\u062f \u0627\u0632 \u0639\u0646\u0627\u0635\u0631 \u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ Pure functions: deduplication based on custom equality judgment<\/span>\n<span class=\"nx\">func<\/span> <span class=\"nx\">distinct<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"nx\">array<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">,<\/span> <span class=\"nx\">isEqual<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">T<\/span><span class=\"p\">,<\/span> <span class=\"nx\">T<\/span><span class=\"p\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"nx\">Bool<\/span><span class=\"p\">):<\/span> <span class=\"nb\">Array<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>  \n  <span class=\"kd\">var<\/span> <span class=\"nx\">uniqueItems<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"nx\">T<\/span><span class=\"p\">]()<\/span>  \n  <span class=\"k\">for<\/span> <span class=\"nx\">item<\/span> <span class=\"k\">in<\/span> <span class=\"nx\">array<\/span> <span class=\"p\">{<\/span>  \n    <span class=\"k\">if<\/span> <span class=\"o\">!<\/span><span class=\"nx\">uniqueItems<\/span><span class=\"p\">.<\/span><span class=\"nf\">contains<\/span><span class=\"p\">(<\/span><span class=\"na\">where<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"nf\">isEqual<\/span><span class=\"p\">(<\/span><span class=\"nx\">$0<\/span><span class=\"p\">,<\/span> <span class=\"nx\">item<\/span><span class=\"p\">)<\/span> <span class=\"p\">})<\/span> <span class=\"p\">{<\/span>  \n      <span class=\"nx\">uniqueItems<\/span><span class=\"p\">.<\/span><span class=\"nf\">append<\/span><span class=\"p\">(<\/span><span class=\"nx\">item<\/span><span class=\"p\">)<\/span>  \n    <span class=\"p\">}<\/span>  \n  <span class=\"p\">}<\/span>  \n  <span class=\"k\">return<\/span> <span class=\"nx\">uniqueItems<\/span>  \n<span class=\"p\">}<\/span>  \n\n<span class=\"c1\">\/\/ Scene: Deduplicate custom objects (judging equality by ID)<\/span>\n<span class=\"nx\">struct<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">{<\/span>  \n  <span class=\"kd\">var<\/span> <span class=\"nx\">id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Int64<\/span>  \n  <span class=\"kd\">var<\/span> <span class=\"nx\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span>  \n<span class=\"p\">}<\/span>  \n\n<span class=\"kd\">let<\/span> <span class=\"nx\">users<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"nc\">User<\/span><span class=\"p\">(<\/span><span class=\"nx\">id<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"nx\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Alice<\/span><span class=\"dl\">\"<\/span><span class=\"p\">),<\/span> <span class=\"nc\">User<\/span><span class=\"p\">(<\/span><span class=\"nx\">id<\/span><span class=\"p\">:<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"nx\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Bob<\/span><span class=\"dl\">\"<\/span><span class=\"p\">),<\/span> <span class=\"nc\">User<\/span><span class=\"p\">(<\/span><span class=\"nx\">id<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"nx\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Alice<\/span><span class=\"dl\">\"<\/span><span class=\"p\">)]<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">distinctUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">distinct<\/span><span class=\"p\">(<\/span><span class=\"nx\">users<\/span><span class=\"p\">,<\/span> <span class=\"nx\">isEqual<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">$0<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span> <span class=\"o\">==<\/span> <span class=\"nx\">$1<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span> <span class=\"p\">})<\/span> <span class=\"c1\">\/\/ Output: [User(id:1), User(id:2)]<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0645\u0646\u0637\u0642 \u0627\u0635\u0644\u06cc<\/strong>:<\/p>\n<ul>\n<li>\u062f\u0631 <code>isEqual<\/code> \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0628\u0631\u0627\u0628\u0631\u06cc \u0634\u06cc \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u062f \u060c \u0645\u0646\u0637\u0642 \u0641\u062f\u0627\u06a9\u0627\u0631\u06cc \u0648 \u0627\u0646\u0648\u0627\u0639 \u062e\u0627\u0635 \u0631\u0627 \u062c\u062f\u0627 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<li>\u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc \u0627\u0646\u0648\u0627\u0639 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0627\u06cc \u06a9\u0647 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0627 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f <code>Equatable<\/code> \u067e\u0631\u0648\u062a\u06a9\u0644<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"3_%DA%A9%D8%A7%D9%87%D8%B4_%D9%88_%D8%AA%D8%AC%D9%85%D8%B9_%D8%AA%D8%AC%D9%85%D8%B9_%D8%AD%D8%A7%D9%84%D8%AA_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86\"><\/span>\n<p>  3. \u06a9\u0627\u0647\u0634 \u0648 \u062a\u062c\u0645\u0639: \u062a\u062c\u0645\u0639 \u062d\u0627\u0644\u062a \u0628\u0633\u062a\u0647 \u0634\u062f\u0646<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u06a9\u0627\u0647\u0634 \u0639\u0645\u0644\u06cc\u0627\u062a \u0639\u0646\u0627\u0635\u0631 \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u0631\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u060c \u06a9\u0647 \u0645\u0633\u0626\u0648\u0644 \u0645\u0646\u0637\u0642 \u0628\u0647 \u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc \u062d\u0627\u0644\u062a \u062f\u0631 \u0627\u06cc\u0646 \u0641\u0631\u0622\u06cc\u0646\u062f \u0647\u0633\u062a\u0646\u062f \u060c \u0628\u0647 \u06cc\u06a9 \u0646\u062a\u06cc\u062c\u0647 \u0648\u0627\u062d\u062f \u062c\u0645\u0639 \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"31_%D9%85%D8%AD%D8%A7%D8%B3%D8%A8%D9%87_%D8%AA%D8%AC%D9%85%D8%B9_%D8%B9%D8%AF%D8%AF%DB%8C\"><\/span>\n<p>  3.1 \u0645\u062d\u0627\u0633\u0628\u0647 \u062a\u062c\u0645\u0639 \u0639\u062f\u062f\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u0632 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0628\u0631\u0627\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0645\u0646\u0637\u0642 \u0627\u0646\u0628\u0627\u0634\u062a \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u062e\u0644\u0627\u0635\u0647 \u060c \u0645\u062d\u0635\u0648\u0644 \u0648 \u0633\u0627\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ Calculate the sum of squared elements of the array<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">numbers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"mi\">4<\/span><span class=\"p\">]<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">sumOfSquares<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">numbers<\/span><span class=\"p\">.<\/span><span class=\"nf\">reduce<\/span><span class=\"p\">(<\/span><span class=\"mi\">0<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">acc<\/span><span class=\"p\">,<\/span> <span class=\"nx\">num<\/span> <span class=\"k\">in<\/span>  \n<span class=\"nx\">acc<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">num<\/span> <span class=\"o\">*<\/span> <span class=\"nx\">num<\/span> <span class=\"c1\">\/\/ Closed square value<\/span>\n<span class=\"p\">}<\/span> <span class=\"c1\">\/\/ Output: 30 (1+4+9+16)<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0633\u0627\u062f\u06af\u06cc \u0645\u0646\u0639\u06a9\u0633 \u0645\u06cc \u0634\u0648\u062f<\/strong>:<\/p>\n<ul>\n<li>\u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 <code>acc<\/code> \u062d\u0627\u0644\u062a \u062a\u062c\u0645\u0639\u06cc \u0627\u0633\u062a \u060c \u0648 <code>num<\/code> \u0639\u0646\u0635\u0631 \u0641\u0639\u0644\u06cc \u0627\u0633\u062a \u0648 \u0645\u0646\u0637\u0642 \u0633\u0627\u062f\u0647 \u0627\u0633\u062a.<\/li>\n<li>\u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0628\u0647 \u0633\u0627\u06cc\u0631 \u0645\u0646\u0637\u0642 \u062a\u062c\u0645\u0639 (\u0645\u0627\u0646\u0646\u062f \u06cc\u0627\u0641\u062a\u0646 \u062d\u062f\u0627\u06a9\u062b\u0631 \u060c \u0645\u062a\u0648\u0633\u0637) \u06af\u0633\u062a\u0631\u0634 \u06cc\u0627\u0641\u062a.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"32_%D8%AA%D8%AC%D9%85%D8%B9_%D8%B4%DB%8C_%D9%BE%DB%8C%DA%86%DB%8C%D8%AF%D9%87\"><\/span>\n<p>  3.2 \u062a\u062c\u0645\u0639 \u0634\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u060c \u0622\u0645\u0627\u0631 \u0648 \u0633\u0627\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u062f\u0631 \u0645\u0648\u0631\u062f \u0645\u062c\u0645\u0648\u0639\u0647 \u0627\u0634\u06cc\u0627\u0621 \u0633\u0641\u0627\u0631\u0634\u06cc \u060c \u0648 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0622\u0646 \u0648\u0638\u06cc\u0641\u0647 \u0627\u0633\u062a\u062e\u0631\u0627\u062c \u0645\u0642\u0627\u062f\u06cc\u0631 \u0648\u06cc\u0698\u06af\u06cc \u0631\u0627 \u062f\u0627\u0631\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ Statistics the total amount of the order (the order list contains discount information)<\/span>\n<span class=\"nx\">struct<\/span> <span class=\"nx\">Order<\/span> <span class=\"p\">{<\/span>  \n  <span class=\"kd\">var<\/span> <span class=\"nx\">quantity<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Int64<\/span>  \n  <span class=\"kd\">var<\/span> <span class=\"nx\">price<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Float64<\/span>  \n  <span class=\"kd\">var<\/span> <span class=\"nx\">discount<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Float64<\/span>  \n<span class=\"p\">}<\/span>  \n\n<span class=\"kd\">let<\/span> <span class=\"nx\">orders<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"nc\">Order<\/span><span class=\"p\">(<\/span><span class=\"nx\">quantity<\/span><span class=\"p\">:<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"nx\">price<\/span><span class=\"p\">:<\/span> <span class=\"mf\">10.0<\/span><span class=\"p\">,<\/span> <span class=\"nx\">discount<\/span><span class=\"p\">:<\/span> <span class=\"mf\">0.1<\/span><span class=\"p\">),<\/span> <span class=\"nc\">Order<\/span><span class=\"p\">(<\/span><span class=\"nx\">quantity<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"nx\">price<\/span><span class=\"p\">:<\/span> <span class=\"mf\">15.0<\/span><span class=\"p\">,<\/span> <span class=\"nx\">discount<\/span><span class=\"p\">:<\/span> <span class=\"mf\">0.2<\/span><span class=\"p\">)]<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">totalAmount<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">orders<\/span><span class=\"p\">.<\/span><span class=\"nf\">reduce<\/span><span class=\"p\">(<\/span><span class=\"mf\">0.0<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">acc<\/span><span class=\"p\">,<\/span> <span class=\"nx\">order<\/span> <span class=\"k\">in<\/span>  \n  <span class=\"kd\">let<\/span> <span class=\"nx\">itemPrice<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">order<\/span><span class=\"p\">.<\/span><span class=\"nx\">price<\/span> <span class=\"o\">*<\/span> <span class=\"p\">(<\/span><span class=\"mi\">1<\/span> <span class=\"o\">-<\/span> <span class=\"nx\">order<\/span><span class=\"p\">.<\/span><span class=\"nx\">discount<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span> <span class=\"nc\">Float64<\/span><span class=\"p\">(<\/span><span class=\"nx\">order<\/span><span class=\"p\">.<\/span><span class=\"nx\">quantity<\/span><span class=\"p\">)<\/span>  \n<span class=\"k\">return<\/span> <span class=\"nx\">acc<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">itemPrice<\/span> <span class=\"c1\">\/\/ closure calculates the amount of a single order and accumulates it<\/span>\n<span class=\"p\">}<\/span> <span class=\"c1\">\/\/ Output: (2*10*0.9)+(1*15*0.8)=18+12=30.0<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0645\u0632\u06cc\u062a<\/strong>:<\/p>\n<ul>\n<li>\u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0634\u0627\u0645\u0644 \u0645\u0646\u0637\u0642 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u062c\u0627\u0631\u062a (\u0645\u0627\u0646\u0646\u062f \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062a\u062e\u0641\u06cc\u0641) \u0628\u0631\u0627\u06cc \u062d\u0641\u0638 \u062c\u0647\u0627\u0646\u06cc \u0628\u0648\u062f\u0646 \u0639\u0645\u0644\u06cc\u0627\u062a \u06a9\u0627\u0647\u0634 \u0628\u0627\u0634\u062f.<\/li>\n<li>\u0627\u0632 \u0645\u0633\u06cc\u0631 \u0635\u0631\u06cc\u062d \u062d\u0644\u0642\u0647 \u062e\u0648\u062f\u062f\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f \u060c \u06a9\u062f \u0628\u06cc\u0634\u062a\u0631 \u0645\u0637\u0627\u0628\u0642 \u0628\u0627 \u0627\u0644\u06af\u0648\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u0627\u0633\u062a.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"4_%D8%A8%D9%87%DB%8C%D9%86%D9%87_%D8%B3%D8%A7%D8%B2%DB%8C_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF_%D9%88_%D8%A7%D9%82%D8%AF%D8%A7%D9%85%D8%A7%D8%AA_%D8%A7%D8%AD%D8%AA%DB%8C%D8%A7%D8%B7%DB%8C\"><\/span>\n<p>  4. \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u0627\u0642\u062f\u0627\u0645\u0627\u062a \u0627\u062d\u062a\u06cc\u0627\u0637\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"41_%D8%A7%D8%B2_%D8%B9%D9%85%D9%84%DB%8C%D8%A7%D8%AA_%D8%BA%DB%8C%D8%B1_%D8%B6%D8%B1%D9%88%D8%B1%DB%8C_%D8%AF%D8%B1_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86_%D8%AE%D9%88%D8%AF%D8%AF%D8%A7%D8%B1%DB%8C_%DA%A9%D9%86%DB%8C%D8%AF\"><\/span>\n<p>  4.1 \u0627\u0632 \u0639\u0645\u0644\u06cc\u0627\u062a \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u062f\u0631 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u062e\u0648\u062f\u062f\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062b\u0627\u0628\u062a \u0631\u0627 \u0627\u0632 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u067e\u0631\u062f\u0627\u0632\u0634 \u062a\u06a9\u0631\u0627\u0631\u06cc \u062f\u0631 \u062d\u0644\u0642\u0647 \u06a9\u0627\u0647\u0634 \u06cc\u0627\u0628\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ Counterexample: Repeated calculation of threshold values \u200b\u200bwithin closure<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">threshold<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">100<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">data<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"p\">...,<\/span> <span class=\"mi\">1000<\/span><span class=\"p\">]<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">filtered<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">data<\/span><span class=\"p\">.<\/span><span class=\"nx\">filter<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">$0<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">2<\/span> <span class=\"o\">&gt;<\/span> <span class=\"nx\">threshold<\/span> <span class=\"p\">}<\/span> <span class=\"c1\">\/\/ Each time the closure is called, the threshold value is calculated<\/span>\n\n<span class=\"c1\">\/\/ Optimization: Calculate the threshold multiple in advance<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">doubleThreshold<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">threshold<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">2<\/span>  \n<span class=\"kd\">let<\/span> <span class=\"nx\">filtered<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">data<\/span><span class=\"p\">.<\/span><span class=\"nx\">filter<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">$0<\/span> <span class=\"o\">&gt;<\/span> <span class=\"nx\">doubleThreshold<\/span> <span class=\"p\">}<\/span> <span class=\"c1\">\/\/ Only comparison operations are performed in the closure<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"42_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%D8%AA%D8%B1%D8%AC%DB%8C%D8%AD%DB%8C_%D8%A7%D8%B2_%D8%AA%D9%88%D8%A7%D8%A8%D8%B9_%D9%85%D8%B1%D8%AA%D8%A8%D9%87_%D8%A8%D8%A7%D9%84%D8%A7%D8%AA%D8%B1_%D8%AF%D8%A7%D8%AE%D9%84%DB%8C\"><\/span>\n<p>  4.2 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062a\u0631\u062c\u06cc\u062d\u06cc \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0645\u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627\u062a\u0631 \u062f\u0627\u062e\u0644\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u0646\u0648\u0627\u0639 \u0645\u062c\u0645\u0648\u0639\u0647 \u0632\u0628\u0627\u0646 Cangjie (\u0645\u0627\u0646\u0646\u062f <code>Array<\/code>) \u062f\u0627\u0631\u0627\u06cc \u062a\u0648\u0627\u0628\u0639 \u0645\u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627\u062a\u0631 \u0645\u0627\u0646\u0646\u062f <code>filter<\/code>\u0628\u0627 <code>map<\/code>\u0628\u0627 <code>reduce<\/code>\u060c \u0648 \u063a\u06cc\u0631\u0647 \u060c \u0648 \u0639\u0645\u0644\u06a9\u0631\u062f \u0622\u0646\u0647\u0627 \u0628\u0647\u06cc\u0646\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u0628\u0627\u06cc\u062f \u0627\u0628\u062a\u062f\u0627 \u0628\u0647 \u062c\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u062f\u0633\u062a\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight typescript\"><code><span class=\"c1\">\/\/ Recommended: Use built-in filter instead of custom loops<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">evenNumbers<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">numbers<\/span><span class=\"p\">.<\/span><span class=\"nx\">filter<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">$0<\/span> <span class=\"o\">%<\/span> <span class=\"mi\">2<\/span> <span class=\"o\">==<\/span> <span class=\"mi\">0<\/span> <span class=\"p\">}<\/span>  \n\n<span class=\"c1\">\/\/ Not recommended: Manually implement filtering logic<\/span>\n<span class=\"kd\">let<\/span> <span class=\"nx\">evenNumbers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"nx\">Int64<\/span><span class=\"p\">]()<\/span>  \n<span class=\"k\">for<\/span> <span class=\"nx\">num<\/span> <span class=\"k\">in<\/span> <span class=\"nx\">numbers<\/span> <span class=\"p\">{<\/span> <span class=\"k\">if<\/span> <span class=\"nx\">num<\/span> <span class=\"o\">%<\/span> <span class=\"mi\">2<\/span> <span class=\"o\">==<\/span> <span class=\"mi\">0<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">evenNumbers<\/span><span class=\"p\">.<\/span><span class=\"nf\">append<\/span><span class=\"p\">(<\/span><span class=\"nx\">num<\/span><span class=\"p\">)<\/span> <span class=\"p\">}<\/span> <span class=\"p\">}<\/span>  \n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"5_%D8%AE%D9%84%D8%A7%D8%B5%D9%87_%D9%85%D9%82%D8%AF%D8%A7%D8%B1_%D8%A7%D8%B5%D9%84%DB%8C_%D8%A8%D8%B3%D8%AA%D9%87_%D8%B4%D8%AF%D9%86_%D8%B9%D9%85%D9%84%DA%A9%D8%B1%D8%AF%DB%8C_%D8%AF%D8%B1_%D8%B9%D9%85%D9%84%DB%8C%D8%A7%D8%AA_%D9%85%D8%AC%D9%85%D9%88%D8%B9%D9%87\"><\/span>\n<p>  5. \u062e\u0644\u0627\u0635\u0647: \u0645\u0642\u062f\u0627\u0631 \u0627\u0635\u0644\u06cc \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u062f\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u0645\u062c\u0645\u0648\u0639\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u062f\u063a\u0627\u0645 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0648 \u062a\u0639\u0637\u06cc\u0644\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u060c \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0622\u0646 \u0631\u0627 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc Hongmeng \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u0646\u062f:<\/p>\n<ul>\n<li>\n<strong>\u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0627\u0639\u0644\u0627\u0645\u06cc\u0647<\/strong>: \u0628\u0647 \u0648\u0636\u0648\u062d \u0641\u0631\u0627\u06cc\u0646\u062f \u062a\u0628\u062f\u06cc\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0632\u0646\u062c\u06cc\u0631\u0647 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0628\u06cc\u0627\u0646 \u06a9\u0646\u06cc\u062f.<\/li>\n<li>\n<strong>\u0686\u0646\u062f \u0628\u0631\u0627\u0628\u0631 \u0645\u0646\u0637\u0642\u06cc \u0648 \u062c\u062f\u0627 \u06a9\u0631\u062f\u0646<\/strong>: \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0645\u0633\u062a\u0642\u0644 \u062a\u062c\u0627\u0631\u062a \u060c \u062d\u0645\u0627\u06cc\u062a \u0627\u0632 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u067e\u0648\u06cc\u0627.<\/li>\n<li>\n<strong>\u062a\u0639\u0627\u062f\u0644 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc<\/strong>: \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0645\u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627 \u0648 \u062a\u0631\u06a9\u06cc\u0628\u0627\u062a \u0628\u0633\u062a\u0647 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u06a9\u062f \u0627\u0636\u0627\u0641\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/li>\n<\/ul>\n<p>\u062f\u0631 \u062a\u0648\u0633\u0639\u0647 \u0648\u0627\u0642\u0639\u06cc \u060c \u0645\u0627 \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u0627\u0632 \u0627\u0635\u0644 &#8220;\u0645\u0633\u0626\u0648\u0644\u06cc\u062a \u0648\u0627\u062d\u062f \u0628\u0631\u0627\u06cc \u0628\u0633\u062a\u0647 \u0634\u062f\u0646&#8221; \u067e\u06cc\u0631\u0648\u06cc \u06a9\u0646\u06cc\u062f. \u0647\u0631 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u062f\u0631 \u062a\u06a9\u0645\u06cc\u0644 \u06cc\u06a9 \u0645\u0631\u062d\u0644\u0647 \u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0627\u062f\u0647 \u060c \u062a\u0634\u06a9\u06cc\u0644 \u06cc\u06a9 \u062e\u0637 \u0644\u0648\u0644\u0647 \u067e\u0631\u062f\u0627\u0632\u0634 \u06a9\u0627\u0645\u0644 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u062a\u0631\u06a9\u06cc\u0628\u06cc \u0627\u0632 \u0627\u067e\u0631\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646 \u06cc\u0627 \u062a\u0648\u0627\u0628\u0639 \u0628\u0631\u0627\u06cc \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0645\u062e\u062a\u0635\u0631 \u0648 \u06a9\u0627\u0631\u0622\u0645\u062f \u0628\u0648\u062f\u0646 \u06a9\u062f \u0645\u062a\u0645\u0631\u06a9\u0632 \u0627\u0633\u062a.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0628\u0647 \u0634\u06cc\u0648\u0647 \u0647\u0627\u06cc \u062e\u0627\u0635 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0648 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u062f\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u062c\u0645\u0639 \u0622\u0648\u0631\u06cc \u062f\u0631 \u0647\u0627\u0631\u0645\u0648\u0646\u06cc\u0648\u0633 \u0628\u0639\u062f\u06cc \u0645\u06cc \u067e\u0631\u062f\u0627\u0632\u062f \u060c \u0648 \u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0639\u0637\u06cc\u0644\u06cc \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0645\u0646\u0637\u0642 \u067e\u0631\u062f\u0627\u0632\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0622\u0645\u062f \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0646\u0645\u0648\u0646\u0647 \u0647\u0627\u06cc \u06a9\u062f \u0631\u0627 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0627\u0632 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u063a\u06cc\u0631\u0642\u0627\u0646\u0648\u0646\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0634\u0648\u062f. 1. \u0641\u06cc\u0644\u062a\u0631 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