{"id":5114,"date":"2023-01-05T11:58:09","date_gmt":"2023-01-05T03:58:09","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5114"},"modified":"2023-01-05T11:58:09","modified_gmt":"2023-01-05T03:58:09","slug":"%e4%ba%86%e8%a7%a3%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8typescript%e6%95%b8%e7%b5%84%e8%bd%89%e6%8f%9b%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e4%ba%86%e8%a7%a3%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8typescript%e6%95%b8%e7%b5%84%e8%bd%89%e6%8f%9b%e5%8a%9f%e8%83%bd\/","title":{"rendered":"\u4e86\u89e3\u5982\u4f55\u5229\u7528TypeScript\u6578\u7d44\u8f49\u63db\u529f\u80fd"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, \u6578\u7d44\u7684\u8f49\u63db, Array Transformation\"><\/p>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u985e\u578b\u7cfb\u7d71\u548c\u975c\u614b\u6aa2\u67e5\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u958b\u767c\u51fa\u53ef\u9760\u7684\u7a0b\u5f0f\u78bc\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u8a0e\u8ad6 TypeScript \u4e2d\u7684\u300c\u6578\u7d44\u7684\u8f49\u63db(Array Transformation)\u300d\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u7a0b\u5f0f\u7bc4\u4f8b\u4f86\u8aaa\u660e\u5982\u4f55\u4f7f\u7528\u5b83\u3002<\/p>\n<p><!--more--><\/p>\n<p>\u6578\u7d44\u7684\u8f49\u63db\u662f\u6307\u5c07\u4e00\u500b\u6578\u7d44\u8f49\u63db\u70ba\u53e6\u4e00\u500b\u6578\u7d44\u7684\u904e\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528 TypeScript \u4e2d\u7684 <code>map()<\/code> \u548c <code>filter()<\/code> \u65b9\u6cd5\u4f86\u5be6\u73fe\u3002<\/p>\n<h2>map() \u65b9\u6cd5<\/h2>\n<pre class=\"brush: typescript\">\nlet numbers = [1, 2, 3, 4, 5];\nlet doubledNumbers = numbers.map(x => x * 2);\n\nconsole.log(doubledNumbers); \/\/ [2, 4, 6, 8, 10]\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 <code>map()<\/code> \u65b9\u6cd5\u5c07\u4e00\u500b\u6578\u7d44 <code>numbers<\/code> \u8f49\u63db\u70ba\u53e6\u4e00\u500b\u6578\u7d44 <code>doubledNumbers<\/code>\uff0c\u5176\u4e2d\u6bcf\u500b\u5143\u7d20\u90fd\u662f\u539f\u4f86\u6578\u7d44\u4e2d\u5143\u7d20\u7684\u5169\u500d\u3002<\/p>\n<h2>filter() \u65b9\u6cd5<\/h2>\n<pre class=\"brush: typescript\">\nlet numbers = [1, 2, 3, 4, 5];\nlet evenNumbers = numbers.filter(x => x % 2 == 0);\n\nconsole.log(evenNumbers); \/\/ [2, 4]\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 <code>filter()<\/code> \u65b9\u6cd5\u5c07\u4e00\u500b\u6578\u7d44 <code>numbers<\/code> \u8f49\u63db\u70ba\u53e6\u4e00\u500b\u6578\u7d44 <code>evenNumbers<\/code>\uff0c\u5176\u4e2d\u53ea\u5305\u542b\u5076\u6578\u3002<\/p>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cTypeScript \u4e2d\u7684\u300c\u6578\u7d44\u7684\u8f49\u63db(Array Transformation)\u300d\u53ef\u4ee5\u4f7f\u7528 <code>map()<\/code> \u548c <code>filter()<\/code> \u65b9\u6cd5\u4f86\u5be6\u73fe\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u5c0d\u6578\u7d44\u9032\u884c\u8f49\u63db\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981:TypeScript\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684\u6578\u7d44\u8f49\u63db\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5feb\u901f\u5730\u5c0d\u6578\u7d44\u9032\u884c\u8f49\u63db\uff0c\u4ee5\u6eff\u8db3\u958b\u767c\u9700\u6c42\u3002\u672c\u6587\u5c07\u4ecb\u7d39TypeScript\u4e2d\u7684\u6578\u7d44\u8f49\u63db\u529f\u80fd\uff0c\u4ee5\u53ca\u5982\u4f55\u5229\u7528\u5b83\u5011\u4f86\u63d0\u9ad8\u958b\u767c\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[187],"tags":[186],"class_list":["post-5114","post","type-post","status-publish","format-standard","hentry","category-typescript","tag-typescript"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1ku","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=5114"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5114\/revisions"}],"predecessor-version":[{"id":5115,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5114\/revisions\/5115"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}