{"id":5222,"date":"2023-01-05T12:14:15","date_gmt":"2023-01-05T04:14:15","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5222"},"modified":"2023-01-05T12:14:15","modified_gmt":"2023-01-05T04:14:15","slug":"%e4%bd%bf%e7%94%a8typescript%e9%99%a3%e5%88%97%e7%b5%b1%e8%a8%88%e6%af%8f%e5%80%8b%e6%95%b8%e5%80%bc%e5%87%ba%e7%8f%be%e6%ac%a1%e6%95%b8","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e4%bd%bf%e7%94%a8typescript%e9%99%a3%e5%88%97%e7%b5%b1%e8%a8%88%e6%af%8f%e5%80%8b%e6%95%b8%e5%80%bc%e5%87%ba%e7%8f%be%e6%ac%a1%e6%95%b8\/","title":{"rendered":"\u4f7f\u7528TypeScript\u9663\u5217\u7d71\u8a08\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u6b21\u6578"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, \u9663\u5217, \u7d71\u8a08, \u6578\u503c, \u51fa\u73fe\u6b21\u6578, countFrequency\"><\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 TypeScript \u9663\u5217\u7684\u7d71\u8a08\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u6b21\u6578(countFrequency)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u958b\u767c\u51fa\u66f4\u512a\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002\u5728 TypeScript \u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u9663\u5217\u4f86\u7d71\u8a08\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u7684\u6b21\u6578\uff0c\u9019\u7a2e\u529f\u80fd\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u5206\u6790\u8cc7\u6599\uff0c\u4e26\u5f97\u5230\u66f4\u591a\u7684\u8cc7\u8a0a\u3002<\/p>\n<h2>\u4f7f\u7528 TypeScript \u9663\u5217\u7684\u7d71\u8a08\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u6b21\u6578(countFrequency)<\/h2>\n<p>\u8981\u4f7f\u7528 TypeScript \u9663\u5217\u7684\u7d71\u8a08\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u6b21\u6578\uff0c\u958b\u767c\u8005\u9700\u8981\u5148\u5b9a\u7fa9\u4e00\u500b\u51fd\u5f0f\uff0c\u8a72\u51fd\u5f0f\u63a5\u53d7\u4e00\u500b\u9663\u5217\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u5c07\u9663\u5217\u4e2d\u7684\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u7684\u6b21\u6578\u7d71\u8a08\u51fa\u4f86\uff0c\u4e26\u5c07\u7d50\u679c\u4ee5\u9663\u5217\u7684\u5f62\u5f0f\u8fd4\u56de\u3002<\/p>\n<pre class=\"brush: typescript\">\nfunction countFrequency(arr: number[]) {\n    let frequency: { [key: number]: number } = {};\n    arr.forEach(num => {\n        if (frequency[num]) {\n            frequency[num]++;\n        } else {\n            frequency[num] = 1;\n        }\n    });\n    return frequency;\n}\n<\/pre>\n<p>\u4e0a\u9762\u7684\u51fd\u5f0f\u63a5\u53d7\u4e00\u500b\u9663\u5217\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u5c07\u9663\u5217\u4e2d\u7684\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u7684\u6b21\u6578\u7d71\u8a08\u51fa\u4f86\uff0c\u4e26\u5c07\u7d50\u679c\u4ee5\u9663\u5217\u7684\u5f62\u5f0f\u8fd4\u56de\u3002<\/p>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u51fd\u5f0f\u4f86\u7d71\u8a08\u4e00\u500b\u9663\u5217\u4e2d\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u7684\u6b21\u6578\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5, 1, 2, 3, 4, 5];\nlet frequency = countFrequency(arr);\nconsole.log(frequency); \/\/ {1: 2, 2: 2, 3: 2, 4: 2, 5: 2}\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u6703\u5c07\u9663\u5217\u4e2d\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u7684\u6b21\u6578\u7d71\u8a08\u51fa\u4f86\uff0c\u4e26\u5c07\u7d50\u679c\u4ee5\u9663\u5217\u7684\u5f62\u5f0f\u8fd4\u56de\uff0c\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n<pre class=\"brush: typescript\">\n{1: 2, 2: 2, 3: 2, 4: 2, 5: 2}\n<\/pre>\n<p>\u9019\u6a23\u5c31\u53ef\u4ee5\u5f97\u5230\u9663\u5217\u4e2d\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u7684\u6b21\u6578\uff0c\u9019\u6a23\u5c31\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u5206\u6790\u8cc7\u6599\uff0c\u4e26\u5f97\u5230\u66f4\u591a\u7684\u8cc7\u8a0a\u3002<\/p>\n<p><!--more--><\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528 TypeScript \u9663\u5217\u7684\u7d71\u8a08\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u6b21\u6578\u7684\u65b9\u6cd5\uff0c\u9019\u6a23\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u5206\u6790\u8cc7\u6599\uff0c\u4e26\u5f97\u5230\u66f4\u591a\u7684\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528TypeScript\u9663\u5217\u7684countFrequency\u51fd\u6578\u4f86\u7d71\u8a08\u6bcf\u500b\u6578\u503c\u51fa\u73fe\u7684\u6b21\u6578\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u7387\u7684\u8655\u7406\u8cc7\u6599\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-5222","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\/pcFK27-1me","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5222","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=5222"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5222\/revisions"}],"predecessor-version":[{"id":5223,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5222\/revisions\/5223"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}