{"id":5496,"date":"2023-01-05T12:48:11","date_gmt":"2023-01-05T04:48:11","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5496"},"modified":"2023-01-05T12:48:11","modified_gmt":"2023-01-05T04:48:11","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8typescriptmap%e4%b8%ad%e7%9a%84getindex%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8typescriptmap%e4%b8%ad%e7%9a%84getindex%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528TypeScriptMap\u4e2d\u7684getIndex\u65b9\u6cd5"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Map, getIndex\"><\/p>\n<h1>\u4f7f\u7528 TypeScript Map \u8fd4\u56de Map \u5bf9\u8c61\u4e2d\u6307\u5b9a\u952e\u7684\u4f4d\u7f6e(getIndex)<\/h1>\n<p>TypeScript Map \u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u8b93\u4f60\u5feb\u901f\u5730\u67e5\u627e Map \u5c0d\u8c61\u4e2d\u6307\u5b9a\u9375\u7684\u4f4d\u7f6e\u3002\u5b83\u53ef\u4ee5\u8b93\u4f60\u66f4\u5feb\u5730\u67e5\u627e Map \u5c0d\u8c61\u4e2d\u7684\u5143\u7d20\uff0c\u4e26\u4e14\u53ef\u4ee5\u66f4\u5feb\u5730\u66f4\u65b0 Map \u5c0d\u8c61\u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<p>TypeScript Map \u7684 getIndex \u65b9\u6cd5\u53ef\u4ee5\u7528\u4f86\u8fd4\u56de Map \u5c0d\u8c61\u4e2d\u6307\u5b9a\u9375\u7684\u4f4d\u7f6e\u3002\u5b83\u53ef\u4ee5\u63a5\u53d7\u4e00\u500b\u53c3\u6578\uff0c\u5373\u8981\u67e5\u627e\u7684\u9375\u3002\u5982\u679c\u627e\u5230\u4e86\u6307\u5b9a\u7684\u9375\uff0c\u5247\u8fd4\u56de\u8a72\u9375\u7684\u4f4d\u7f6e\uff0c\u5426\u5247\u8fd4\u56de -1\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u500b\u4f7f\u7528 TypeScript Map \u7684 getIndex \u65b9\u6cd5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet map = new Map();\nmap.set('name', 'John');\nmap.set('age', 30);\n\nlet index = map.getIndex('name');\nconsole.log(index); 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