{"id":5186,"date":"2023-01-05T12:09:16","date_gmt":"2023-01-05T04:09:16","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5186"},"modified":"2023-01-05T12:09:16","modified_gmt":"2023-01-05T04:09:16","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8typescript%e4%b8%ad%e7%9a%84%e6%95%b8%e7%b5%84%e6%9f%a5%e6%89%be%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8typescript%e4%b8%ad%e7%9a%84%e6%95%b8%e7%b5%84%e6%9f%a5%e6%89%be%e5%8a%9f%e8%83%bd\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528TypeScript\u4e2d\u7684\u6578\u7d44\u67e5\u627e\u529f\u80fd"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, \u6578\u7d44\u7684\u67e5\u627e, Array Find\"><\/p>\n<h1>TypeScript \u6578\u7d44\u7684\u67e5\u627e(Array Find)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u64c1\u6709\u66f4\u591a\u7684\u529f\u80fd\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u652f\u63f4\u6578\u7d44\u7684\u67e5\u627e\uff0c\u4e5f\u5c31\u662f Array Find\u3002<\/p>\n<p>Array Find \u662f\u4e00\u7a2e\u67e5\u627e\u6578\u7d44\u4e2d\u6eff\u8db3\u689d\u4ef6\u7684\u5143\u7d20\u7684\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u67e5\u627e\u51fa\u6eff\u8db3\u689d\u4ef6\u7684\u5143\u7d20\uff0c\u800c\u4e0d\u9700\u8981\u81ea\u5df1\u5beb\u51fa\u8ff4\u5708\u4f86\u67e5\u627e\u3002<\/p>\n<p><!--more--><\/p>\n<p>Array Find \u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre class=\"brush: typescript\">\narray.find(callback(element[, index[, array]]) [, thisArg])\n<\/pre>\n<p>\u5176\u4e2d\uff0ccallback \u662f\u4e00\u500b\u51fd\u5f0f\uff0c\u5b83\u6703\u63a5\u6536\u4e09\u500b\u53c3\u6578\uff1aelement\uff0cindex\uff0carray\uff0c\u5206\u5225\u4ee3\u8868\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u3001\u7d22\u5f15\u503c\u3001\u4ee5\u53ca\u6574\u500b\u6578\u7d44\u3002<\/p>\n<p>thisArg \u662f\u53ef\u9078\u7684\u53c3\u6578\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u6307\u5b9a callback \u51fd\u5f0f\u4e2d this \u7684\u503c\u3002<\/p>\n<p>Array Find \u6703\u56de\u50b3\u7b2c\u4e00\u500b\u6eff\u8db3\u689d\u4ef6\u7684\u5143\u7d20\uff0c\u5982\u679c\u6c92\u6709\u627e\u5230\u6eff\u8db3\u689d\u4ef6\u7684\u5143\u7d20\uff0c\u5247\u6703\u56de\u50b3 undefined\u3002<\/p>\n<p>\u8209\u500b\u4f8b\u5b50\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u6578\u7d44\uff0c\u88e1\u9762\u6709\u4e00\u4e9b\u6578\u5b57\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet numbers = [1, 2, 3, 4, 5];\n<\/pre>\n<p>\u6211\u5011\u60f3\u8981\u627e\u51fa\u88e1\u9762\u5927\u65bc 3 \u7684\u6578\u5b57\uff0c\u53ef\u4ee5\u4f7f\u7528 Array Find \u4f86\u5be6\u73fe\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet result = numbers.find(function(element) {\n  return element > 3;\n});\n\nconsole.log(result); \/\/ 4\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 Array Find \u4f86\u67e5\u627e numbers \u6578\u7d44\u4e2d\u5927\u65bc 3 \u7684\u5143\u7d20\uff0c\u4e26\u5c07\u7d50\u679c\u5b58\u653e\u5728 result \u8b8a\u6578\u4e2d\uff0c\u6700\u5f8c\u6211\u5011\u53ef\u4ee5\u5728 console \u4e2d\u770b\u5230\u7d50\u679c\u70ba 4\u3002<\/p>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cArray Find \u662f\u4e00\u7a2e\u975e\u5e38\u6709\u7528\u7684\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u67e5\u627e\u51fa\u6eff\u8db3\u689d\u4ef6\u7684\u5143\u7d20\uff0c\u800c\u4e0d\u9700\u8981\u81ea\u5df1\u5beb\u51fa\u8ff4\u5708\u4f86\u67e5\u627e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1aTypeScript\u4e2d\u7684\u6578\u7d44\u67e5\u627e\u529f\u80fd\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5feb\u901f\u67e5\u627e\u6578\u7d44\u4e2d\u7684\u5143\u7d20\uff0c\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528TypeScript\u4e2d\u7684find()\u51fd\u6578\u4f86\u67e5\u627e\u6578\u7d44\u4e2d\u7684\u5143\u7d20\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u793a\u4f8b\u4f86\u8a73\u7d30\u8aaa\u660e\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-5186","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\/pcFK27-1lE","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5186","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=5186"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5186\/revisions"}],"predecessor-version":[{"id":5187,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5186\/revisions\/5187"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}