{"id":5554,"date":"2023-01-05T13:06:38","date_gmt":"2023-01-05T05:06:38","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5554"},"modified":"2023-01-05T13:06:38","modified_gmt":"2023-01-05T05:06:38","slug":"%e4%bd%bf%e7%94%a8typescriptmap%e5%b0%8dmap%e5%b0%8d%e8%b1%a1%e5%9f%b7%e8%a1%8c%e5%87%bd%e6%95%b8%e4%b8%a6%e8%bf%94%e5%9b%9e%e6%96%b0%e7%9a%84map%e5%b0%8d%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e4%bd%bf%e7%94%a8typescriptmap%e5%b0%8dmap%e5%b0%8d%e8%b1%a1%e5%9f%b7%e8%a1%8c%e5%87%bd%e6%95%b8%e4%b8%a6%e8%bf%94%e5%9b%9e%e6%96%b0%e7%9a%84map%e5%b0%8d%e8%b1%a1\/","title":{"rendered":"\u4f7f\u7528TypeScriptMap\u5c0dMap\u5c0d\u8c61\u57f7\u884c\u51fd\u6578\u4e26\u8fd4\u56de\u65b0\u7684Map\u5c0d\u8c61"},"content":{"rendered":"

<\/p>\n

\u5229\u7528 TypeScript Map \u5bf9 Map \u5bf9\u8c61\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u6267\u884c\u51fd\u6570\u5e76\u8fd4\u56de\u65b0\u7684 Map \u5bf9\u8c61<\/h1>\n

TypeScript Map \u662f\u4e00\u79cd\u975e\u5e38\u6709\u7528\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u5730\u5bf9 Map \u5bf9\u8c61\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u6267\u884c\u51fd\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684 Map \u5bf9\u8c61\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 TypeScript Map \u6765\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\u3002<\/p>\n

\u4f7f\u7528 TypeScript Map \u5bf9 Map \u5bf9\u8c61\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u6267\u884c\u51fd\u6570<\/h2>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a TypeScript Map \u5bf9\u8c61\uff0c\u5b83\u5c06\u7528\u4e8e\u5b58\u50a8 Map \u5bf9\u8c61\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n

\nlet map = new Map();\nmap.set('name', 'John');\nmap.set('age', 30);\nmap.set('city', 'New York');\n<\/pre>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 map.forEach()<\/code> \u65b9\u6cd5\u6765\u5bf9 Map \u5bf9\u8c61\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u6267\u884c\u51fd\u6570\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n
\nmap.forEach((value, key) => {\n    console.log(`{key}:<\/span>{value}`);\n});\n<\/pre>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u5c06\u4f1a\u8f93\u51fa\uff1a<\/p>\n
\nname: John\nage: 30\ncity: New York\n<\/pre>\n
\u8fd4\u56de\u65b0\u7684 Map \u5bf9\u8c61<\/h2>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 map.map()<\/code> \u65b9\u6cd5\u6765\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684 Map \u5bf9\u8c61\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n
\nlet newMap = map.map((value, key) => {\n    return `{key}:<\/span>{value}`;\n});\n<\/pre>\n
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\nname: John\nage: 30\ncity: New York\n<\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 TypeScript Map \u5bf9 Map \u5bf9\u8c61\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u6267\u884c\u51fd\u6570\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684 Map \u5bf9\u8c61\u3002\u6211\u5011\u4f7f\u7528 map.forEach()<\/code> \u65b9\u6cd5\u6765\u5bf9 Map \u5bf9\u8c61\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u6267\u884c\u51fd\u6570\uff0c\u5e76\u4f7f\u7528 map.map()<\/code> \u65b9\u6cd5\u6765\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684 Map \u5bf9\u8c61\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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