{"id":5342,"date":"2023-01-05T12:29:50","date_gmt":"2023-01-05T04:29:50","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5342"},"modified":"2023-01-05T12:29:50","modified_gmt":"2023-01-05T04:29:50","slug":"%e4%bd%bf%e7%94%a8typescriptmap%e5%b0%87map%e5%b0%8d%e8%b1%a1%e5%90%88%e4%bd%b5%e5%88%b0%e5%8f%a6%e4%b8%80%e5%80%8bmap%e5%b0%8d%e8%b1%a1","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%e5%90%88%e4%bd%b5%e5%88%b0%e5%8f%a6%e4%b8%80%e5%80%8bmap%e5%b0%8d%e8%b1%a1\/","title":{"rendered":"\u4f7f\u7528TypeScriptMap\u5c07Map\u5c0d\u8c61\u5408\u4f75\u5230\u53e6\u4e00\u500bMap\u5c0d\u8c61"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Map, merge()\"><\/p>\n<h1>\u4f7f\u7528 TypeScript Map \u5c07 Map \u5c0d\u8c61\u5408\u4f75\u5230\u53e6\u4e00\u500b Map \u5c0d\u8c61(merge())<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u529f\u80fd\uff0c\u4f8b\u5982\u985e\u578b\u6aa2\u67e5\u548c\u975c\u614b\u5206\u6790\u3002\u5b83\u4e5f\u63d0\u4f9b\u4e86\u4e00\u500b Map \u985e\uff0c\u53ef\u4ee5\u7528\u4f86\u5132\u5b58\u9375\u503c\u5c0d\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 TypeScript Map \u4f86\u5c07 Map \u5c0d\u8c61\u5408\u4f75\u5230\u53e6\u4e00\u500b Map \u5c0d\u8c61\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662f Map \u5c0d\u8c61\uff1f<\/h2>\n<p>Map \u5c0d\u8c61\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u5c0d\u8c61\uff0c\u5b83\u5141\u8a31\u4f60\u5c07\u9375\u8207\u503c\u5c0d\u61c9\u8d77\u4f86\u3002\u5b83\u7684\u512a\u9ede\u662f\u53ef\u4ee5\u5feb\u901f\u67e5\u627e\u548c\u66f4\u65b0\u503c\uff0c\u800c\u4e0d\u9700\u8981\u904d\u6b77\u6574\u500b\u5c0d\u8c61\u3002<\/p>\n<p>\u8209\u500b\u4f8b\u5b50\uff0c\u5047\u8a2d\u4f60\u6709\u4e00\u500b\u5c0d\u8c61\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e9b\u7528\u6236\u7684\u8cc7\u6599\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet users = {\n  \"user1\": {\n    \"name\": \"John\",\n    \"age\": 30\n  },\n  \"user2\": {\n    \"name\": \"Jane\",\n    \"age\": 25\n  }\n};\n<\/pre>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528 Map \u5c0d\u8c61\u4f86\u5132\u5b58\u9019\u4e9b\u8cc7\u6599\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet usersMap = new Map();\nusersMap.set(\"user1\", {\n  \"name\": \"John\",\n  \"age\": 30\n});\nusersMap.set(\"user2\", {\n  \"name\": \"Jane\",\n  \"age\": 25\n});\n<\/pre>\n<p>\u73fe\u5728\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>get()<\/code> \u65b9\u6cd5\u4f86\u67e5\u627e\u7279\u5b9a\u7684\u7528\u6236\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet user = usersMap.get(\"user1\");\nconsole.log(user); \/\/ {name: \"John\", age: 30}\n<\/pre>\n<h2>\u5982\u4f55\u4f7f\u7528 TypeScript Map \u5408\u4f75 Map \u5c0d\u8c61\uff1f<\/h2>\n<p>TypeScript Map \u63d0\u4f9b\u4e86\u4e00\u500b <code>merge()<\/code> \u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u4f86\u5c07\u4e00\u500b Map \u5c0d\u8c61\u7684\u5167\u5bb9\u5408\u4f75\u5230\u53e6\u4e00\u500b Map \u5c0d\u8c61\u4e2d\u3002<\/p>\n<p>\u8209\u500b\u4f8b\u5b50\uff0c\u5047\u8a2d\u4f60\u6709\u5169\u500b Map \u5c0d\u8c61\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet usersMap1 = new Map();\nusersMap1.set(\"user1\", {\n  \"name\": \"John\",\n  \"age\": 30\n});\nusersMap1.set(\"user2\", {\n  \"name\": \"Jane\",\n  \"age\": 25\n});\n\nlet usersMap2 = new Map();\nusersMap2.set(\"user3\", {\n  \"name\": \"Bob\",\n  \"age\": 35\n});\nusersMap2.set(\"user4\", {\n  \"name\": \"Alice\",\n  \"age\": 40\n});\n<\/pre>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>merge()<\/code> \u65b9\u6cd5\u5c07\u5169\u500b Map \u5c0d\u8c61\u5408\u4f75\u5230\u4e00\u500b Map \u5c0d\u8c61\u4e2d\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet usersMap = new Map();\nusersMap.merge(usersMap1);\nusersMap.merge(usersMap2);\n\nconsole.log(usersMap);\n\/*\nMap {\n  \"user1\" => { name: \"John\", age: 30 },\n  \"user2\" => { name: \"Jane\", age: 25 },\n  \"user3\" => { name: \"Bob\", age: 35 },\n  \"user4\" => { name: \"Alice\", age: 40 }\n}\n*\/\n<\/pre>\n<p>\u73fe\u5728\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>get()<\/code> \u65b9\u6cd5\u4f86\u67e5\u627e\u7279\u5b9a\u7684\u7528\u6236\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet user = usersMap.get(\"user3\");\nconsole.log(user); \/\/ {name: \"Bob\", age: 35}\n<\/pre>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 TypeScript Map \u4f86\u5c07 Map \u5c0d\u8c61\u5408\u4f75\u5230\u53e6\u4e00\u500b Map \u5c0d\u8c61\u3002\u6211\u5011\u9996\u5148\u4ecb\u7d39\u4e86 Map \u5c0d\u8c61\uff0c\u7136\u5f8c\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 <code>merge()<\/code> \u65b9\u6cd5\u5c07\u5169\u500b Map \u5c0d\u8c61\u5408\u4f75\u5230\u4e00\u500b Map \u5c0d\u8c61\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1aTypeScriptMap\u662f\u4e00\u7a2e\u5c0d\u8c61\uff0c\u53ef\u4ee5\u5c07\u5176\u4ed6Map\u5c0d\u8c61\u5408\u4f75\u5230\u4e00\u500bMap\u5c0d\u8c61\u4e2d\uff0c\u4ee5\u63d0\u4f9b\u66f4\u9ad8\u6548\u7684\u67e5\u627e\u548c\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528TypeScriptMap\u7684merge()\u51fd\u6578\u5c07Map\u5c0d\u8c61\u5408\u4f75\u5230\u53e6\u4e00\u500bMap\u5c0d\u8c61\u4e2d\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u63d0\u9ad8\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u7684\u6548\u7387\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-5342","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\/pcFK27-1oa","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5342","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=5342"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5342\/revisions"}],"predecessor-version":[{"id":5343,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5342\/revisions\/5343"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}