{"id":5316,"date":"2023-01-05T12:26:28","date_gmt":"2023-01-05T04:26:28","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5316"},"modified":"2023-01-05T12:26:28","modified_gmt":"2023-01-05T04:26:28","slug":"%e4%bd%bf%e7%94%a8typescriptmap%e5%b0%87map%e5%b0%8d%e8%b1%a1%e8%bd%89%e6%8f%9b%e7%82%ba%e6%95%b8%e7%b5%84","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e4%bd%bf%e7%94%a8typescriptmap%e5%b0%87map%e5%b0%8d%e8%b1%a1%e8%bd%89%e6%8f%9b%e7%82%ba%e6%95%b8%e7%b5%84\/","title":{"rendered":"\u4f7f\u7528TypeScriptMap\u5c07Map\u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Map, toArray()\"><\/p>\n<h1>TypeScript Map \u5c07 Map \u5bf9\u8c61\u8f6c\u4e3a\u6570\u7ec4(toArray())<\/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\u975c\u614b\u5206\u6790\u3002\u5b83\u4e5f\u652f\u6301 Map \u5c0d\u8c61\uff0c\u5b83\u662f\u4e00\u7a2e\u9375\u503c\u5c0d\u7684\u96c6\u5408\uff0c\u53ef\u4ee5\u7528\u4f86\u5b58\u5132\u4efb\u4f55\u985e\u578b\u7684\u6578\u64da\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 TypeScript Map \u5c07 Map \u5c0d\u8c61\u8f6c\u63db\u70ba\u6578\u7d44\u3002<\/p>\n<h2>Map \u5c0d\u8c61<\/h2>\n<p>Map \u5c0d\u8c61\u662f\u4e00\u7a2e\u9375\u503c\u5c0d\u7684\u96c6\u5408\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u5b58\u5132\u4efb\u4f55\u985e\u578b\u7684\u6578\u64da\u3002\u5b83\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet map = new Map();\n<\/pre>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 set() \u65b9\u6cd5\u5411 Map \u5c0d\u8c61\u4e2d\u6dfb\u52a0\u9375\u503c\u5c0d\uff1a<\/p>\n<pre class=\"brush: javascript\">\nmap.set('name', 'John');\nmap.set('age', 30);\n<\/pre>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 get() \u65b9\u6cd5\u5f9e Map \u5c0d\u8c61\u4e2d\u7372\u53d6\u503c\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet name = map.get('name');\nlet age = map.get('age');\n<\/pre>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 size \u5c6c\u6027\u7372\u53d6 Map \u5c0d\u8c61\u4e2d\u9375\u503c\u5c0d\u7684\u6578\u91cf\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet size = map.size;\n<\/pre>\n<p><!--more--><\/p>\n<h2>toArray() \u65b9\u6cd5<\/h2>\n<p>TypeScript Map \u63d0\u4f9b\u4e86\u4e00\u500b <span style=\"font-weight: bold;\">toArray()<\/span> \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\u3002\u5b83\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet array = map.toArray();\n<\/pre>\n<p>\u8a72\u65b9\u6cd5\u5c07\u8fd4\u56de\u4e00\u500b\u5305\u542b Map \u5c0d\u8c61\u4e2d\u6240\u6709\u9375\u503c\u5c0d\u7684\u6578\u7d44\uff0c\u6bcf\u500b\u9375\u503c\u5c0d\u90fd\u662f\u4e00\u500b\u9663\u5217\uff0c\u5176\u4e2d\u7b2c\u4e00\u500b\u5143\u7d20\u662f\u9375\uff0c\u7b2c\u4e8c\u500b\u5143\u7d20\u662f\u503c\u3002<\/p>\n<h2>\u793a\u4f8b<\/h2>\n<p>\u4e0b\u9762\u7684\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 toArray() \u65b9\u6cd5\u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet map = new Map();\n\nmap.set('name', 'John');\nmap.set('age', 30);\n\nlet array = map.toArray();\n\nconsole.log(array);\n<\/pre>\n<p>\u8f38\u51fa\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n<pre class=\"brush: javascript\">\n[['name', 'John'], ['age', 30]]\n<\/pre>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5b78\u7fd2\u4e86\u5982\u4f55\u4f7f\u7528 TypeScript Map \u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\u3002 toArray() \u65b9\u6cd5\u53ef\u4ee5\u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u5305\u542b\u6240\u6709\u9375\u503c\u5c0d\u7684\u6578\u7d44\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528TypeScriptMap\u5c07Map\u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\uff0c\u4e26\u8a73\u7d30\u4ecb\u7d39toArray()\u51fd\u6578\u7684\u529f\u80fd\uff0c\u8b93\u4f60\u53ef\u4ee5\u66f4\u8f15\u9b06\u5730\u5c07Map\u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\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-5316","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\/pcFK27-1nK","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5316","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=5316"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5316\/revisions"}],"predecessor-version":[{"id":5317,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5316\/revisions\/5317"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}