{"id":5518,"date":"2023-01-05T12:54:39","date_gmt":"2023-01-05T04:54:39","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5518"},"modified":"2023-01-05T12:54:39","modified_gmt":"2023-01-05T04:54:39","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%84-2","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%84-2\/","title":{"rendered":"\u4f7f\u7528TypeScriptMap\u5c07Map\u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Map, MapToArray\"><\/p>\n<h1>TypeScript Map \u5c07Map \u5bf9\u8c61\u8f6c\u6362\u4e3a\u6570\u7ec4(mapToArray)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e\u7531 Microsoft \u958b\u767c\u7684 JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u64c1\u6709\u66f4\u591a\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u958b\u767c\u51fa\u66f4\u9ad8\u54c1\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002\u5176\u4e2d\u4e00\u500b\u529f\u80fd\u5c31\u662f Map\uff0c\u5b83\u53ef\u4ee5\u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\uff0c\u9019\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u662f\u975e\u5e38\u6709\u7528\u7684\u3002<\/p>\n<p><!--more--><\/p>\n<p>Map \u662f\u4e00\u7a2e\u5c0d\u8c61\uff0c\u5b83\u53ef\u4ee5\u5c07\u9375\u8207\u503c\u5c0d\u61c9\u8d77\u4f86\uff0c\u800c\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u6709\u6642\u5019\u9700\u8981\u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\uff0c\u4ee5\u4fbf\u66f4\u5bb9\u6613\u64cd\u4f5c\u3002TypeScript \u63d0\u4f9b\u4e86\u4e00\u500b <span style=\"color: #0066cc; font-weight: bold;\">mapToArray<\/span> \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\u3002<\/p>\n<pre class=\"brush: typescript\">\nlet map = new Map();\nmap.set('name', 'John');\nmap.set('age', 20);\n\nlet array = Array.from(map);\nconsole.log(array); \/\/ [['name', 'John'], ['age', 20]]\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u5efa\u7acb\u4e86\u4e00\u500b Map \u5c0d\u8c61\uff0c\u4e26\u4f7f\u7528 <span style=\"color: #0066cc; font-weight: bold;\">Array.from()<\/span> \u65b9\u6cd5\u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\u3002<\/p>\n<p><span style=\"color: #0066cc; font-weight: bold;\">mapToArray<\/span> \u65b9\u6cd5\u4e5f\u53ef\u4ee5\u7528\u65bc\u5c07 Map \u5c0d\u8c61\u8f49\u63db\u70ba\u6578\u7d44\uff0c\u4f46\u5b83\u6709\u4e00\u4e9b\u984d\u5916\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u64cd\u4f5c Map \u5c0d\u8c61\u3002<\/p>\n<pre class=\"brush: typescript\">\nlet map = new Map();\nmap.set('name', 'John');\nmap.set('age', 20);\n\nlet array = map.mapToArray((key, value) => {\n  return {\n    key: key,\n    value: value\n  };\n});\n\nconsole.log(array); 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