{"id":5504,"date":"2023-01-05T12:49:55","date_gmt":"2023-01-05T04:49:55","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5504"},"modified":"2023-01-05T12:49:55","modified_gmt":"2023-01-05T04:49:55","slug":"%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8typescriptmap%e5%88%a4%e6%96%b7map%e5%b0%8d%e8%b1%a1%e4%b8%ad%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e6%8c%87%e5%ae%9a%e9%8d%b5","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8typescriptmap%e5%88%a4%e6%96%b7map%e5%b0%8d%e8%b1%a1%e4%b8%ad%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e6%8c%87%e5%ae%9a%e9%8d%b5\/","title":{"rendered":"\u5982\u4f55\u5229\u7528TypeScriptMap\u5224\u65b7Map\u5c0d\u8c61\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u9375"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Map, containsKey\"><\/p>\n<h1>\u4f7f\u7528 TypeScript Map \u5224\u65b7 Map \u5bf9\u8c61\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u952e(containsKey)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7279\u6027\uff0c\u4f8b\u5982\u985e\u578b\u6aa2\u67e5\u548c\u985e\u578b\u5b89\u5168\u6027\u3002TypeScript \u4e2d\u7684 Map \u662f\u4e00\u7a2e\u985e\u4f3c\u65bc JavaScript \u5c0d\u8c61\u7684\u6578\u64da\u7d50\u69cb\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u5b58\u5132\u9375\u503c\u5c0d\u3002\u5728 TypeScript \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 containsKey \u65b9\u6cd5\u4f86\u5224\u65b7 Map \u5c0d\u8c61\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684\u9375\u3002<\/p>\n<p><!--more--><\/p>\n<p>\u5728 TypeScript \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <span style=\"color: #0066cc; font-weight: bold;\">Map<\/span> \u985e\u4f86\u5275\u5efa\u4e00\u500b\u65b0\u7684 Map \u5c0d\u8c61\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet myMap = new Map();\n<\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u53ef\u4ee5\u4f7f\u7528 <span style=\"color: #0066cc; font-weight: bold;\">set()<\/span> \u65b9\u6cd5\u5c07\u9375\u503c\u5c0d\u6dfb\u52a0\u5230 Map \u5c0d\u8c61\u4e2d\uff1a<\/p>\n<pre class=\"brush: typescript\">\nmyMap.set(\"name\", \"John\");\nmyMap.set(\"age\", 30);\n<\/pre>\n<p>\u73fe\u5728\uff0c\u53ef\u4ee5\u4f7f\u7528 <span style=\"color: #0066cc; font-weight: bold;\">containsKey()<\/span> \u65b9\u6cd5\u4f86\u5224\u65b7 Map \u5c0d\u8c61\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684\u9375\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet containsName = myMap.containsKey(\"name\"); \/\/ true\nlet containsAge = myMap.containsKey(\"age\"); \/\/ true\nlet containsGender = myMap.containsKey(\"gender\"); \/\/ false\n<\/pre>\n<p>\u7e3d\u7d50\uff0cTypeScript \u4e2d\u7684 Map \u662f\u4e00\u7a2e\u985e\u4f3c\u65bc JavaScript \u5c0d\u8c61\u7684\u6578\u64da\u7d50\u69cb\uff0c\u53ef\u4ee5\u4f7f\u7528 containsKey \u65b9\u6cd5\u4f86\u5224\u65b7 Map \u5c0d\u8c61\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684\u9375\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5229\u7528TypeScriptMap\u4f86\u5224\u65b7Map\u5c0d\u8c61\u4e2d\u662f\u5426\u5b58\u5728\u6307\u5b9a\u9375\uff0c\u4e26\u63d0\u4f9b\u7c21\u55ae\u7684\u793a\u4f8b\u4ee3\u78bc\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-5504","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\/pcFK27-1qM","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5504","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=5504"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5504\/revisions"}],"predecessor-version":[{"id":5505,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5504\/revisions\/5505"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}