{"id":4998,"date":"2023-01-05T11:35:25","date_gmt":"2023-01-05T03:35:25","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4998"},"modified":"2023-01-05T11:35:25","modified_gmt":"2023-01-05T03:35:25","slug":"%e4%ba%86%e8%a7%a3typescript%e5%ad%97%e4%b8%b2%e7%9a%84%e5%89%8d%e5%be%8c%e7%b6%b4%e5%88%a4%e6%96%b7%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e4%ba%86%e8%a7%a3typescript%e5%ad%97%e4%b8%b2%e7%9a%84%e5%89%8d%e5%be%8c%e7%b6%b4%e5%88%a4%e6%96%b7%e5%8a%9f%e8%83%bd\/","title":{"rendered":"\u4e86\u89e3TypeScript\u5b57\u4e32\u7684\u524d\u5f8c\u7db4\u5224\u65b7\u529f\u80fd"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, \u5b57\u4e32, \u524d\u5f8c\u7db4\u5224\u65b7, startsWith, endsWith\"><\/p>\n<h1>TypeScript \u5b57\u4e32\u7684\u524d\u5f8c\u7db4\u5224\u65b7(startsWith, endsWith)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7279\u6027\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u958b\u767c\u51fa\u66f4\u512a\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002\u5176\u4e2d\u4e00\u500b\u7279\u6027\u5c31\u662f\u63d0\u4f9b\u4e86\u5b57\u4e32\u7684\u524d\u5f8c\u7db4\u5224\u65b7\uff0c\u4e5f\u5c31\u662f startsWith \u548c endsWith\u3002<\/p>\n<p><!--more--><\/p>\n<p>\u9019\u5169\u500b\u51fd\u5f0f\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u5224\u65b7\u5b57\u4e32\u7684\u958b\u982d\u548c\u7d50\u5c3e\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet str = \"Hello World\";\n\nconsole.log(str.startsWith(\"Hello\")); \/\/ true\nconsole.log(str.endsWith(\"World\")); \/\/ true\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u5ba3\u544a\u4e86\u4e00\u500b\u5b57\u4e32\u8b8a\u6578 str\uff0c\u4e26\u4e14\u4f7f\u7528 startsWith \u548c endsWith \u5224\u65b7\u5b83\u7684\u958b\u982d\u548c\u7d50\u5c3e\u662f\u5426\u7b26\u5408\u6211\u5011\u7684\u9810\u671f\uff0c\u7d50\u679c\u90fd\u662f true\uff0c\u8868\u793a\u5b57\u4e32\u7684\u958b\u982d\u548c\u7d50\u5c3e\u90fd\u662f\u6211\u5011\u6240\u671f\u671b\u7684\u3002<\/p>\n<p>\u9019\u5169\u500b\u51fd\u5f0f\u9084\u53ef\u4ee5\u63a5\u53d7\u7b2c\u4e8c\u500b\u53c3\u6578\uff0c\u8868\u793a\u8981\u6aa2\u67e5\u7684\u5b57\u4e32\u9577\u5ea6\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet str = \"Hello World\";\n\nconsole.log(str.startsWith(\"Hello\", 5)); \/\/ true\nconsole.log(str.endsWith(\"World\", 5)); \/\/ false\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u6307\u5b9a\u4e86\u7b2c\u4e8c\u500b\u53c3\u6578\u70ba 5\uff0c\u8868\u793a\u53ea\u6aa2\u67e5\u5b57\u4e32\u7684\u524d 5 \u500b\u5b57\u5143\uff0c\u7d50\u679c startsWith \u7684\u7d50\u679c\u662f true\uff0c\u8868\u793a\u5b57\u4e32\u7684\u524d 5 \u500b\u5b57\u5143\u7b26\u5408\u6211\u5011\u7684\u9810\u671f\uff0c\u800c endsWith \u7684\u7d50\u679c\u662f false\uff0c\u8868\u793a\u5b57\u4e32\u7684\u524d 5 \u500b\u5b57\u5143\u4e0d\u7b26\u5408\u6211\u5011\u7684\u9810\u671f\u3002<\/p>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cTypeScript \u63d0\u4f9b\u7684 startsWith \u548c endsWith \u51fd\u5f0f\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u5224\u65b7\u5b57\u4e32\u7684\u958b\u982d\u548c\u7d50\u5c3e\uff0c\u4e26\u4e14\u53ef\u4ee5\u6307\u5b9a\u8981\u6aa2\u67e5\u7684\u5b57\u4e32\u9577\u5ea6\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u958b\u767c\u51fa\u66f4\u512a\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981:TypeScript\u63d0\u4f9b\u4e86\u5169\u500b\u65b9\u6cd5\u4f86\u5224\u65b7\u5b57\u4e32\u7684\u524d\u5f8c\u7db4\uff0c\u5206\u5225\u662fstartsWith()\u548cendsWith()\uff0c\u5b83\u5011\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u5feb\u901f\u5730\u6aa2\u67e5\u5b57\u4e32\u7684\u958b\u982d\u548c\u7d50\u5c3e\uff0c\u4ee5\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-4998","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\/pcFK27-1iC","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4998","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=4998"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4998\/revisions"}],"predecessor-version":[{"id":4999,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4998\/revisions\/4999"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4998"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4998"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4998"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}