{"id":4822,"date":"2023-01-05T10:34:49","date_gmt":"2023-01-05T02:34:49","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4822"},"modified":"2023-01-05T10:34:49","modified_gmt":"2023-01-05T02:34:49","slug":"%e4%ba%86%e8%a7%a3typescript%e4%b8%ad%e5%89%a9%e4%bd%99%e5%8f%83%e6%95%b8restparameter%e7%9a%84%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e4%ba%86%e8%a7%a3typescript%e4%b8%ad%e5%89%a9%e4%bd%99%e5%8f%83%e6%95%b8restparameter%e7%9a%84%e5%8a%9f%e8%83%bd\/","title":{"rendered":"\u4e86\u89e3TypeScript\u4e2d\u5269\u4f59\u53c3\u6578(restparameter)\u7684\u529f\u80fd"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Rest Parameter\"><\/p>\n<h1>TypeScript \u5269\u4f59\u53c2\u6570(rest parameter)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7279\u6027\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u5269\u4f59\u53c3\u6578(rest parameter)\u3002\u5269\u4f59\u53c3\u6578\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u51fd\u5f0f\u4e2d\u63a5\u6536\u4efb\u610f\u6578\u91cf\u7684\u53c3\u6578\uff0c\u800c\u4e0d\u9700\u8981\u6307\u5b9a\u53c3\u6578\u7684\u6578\u91cf\u3002<\/p>\n<p><!--more--><\/p>\n<p>\u5269\u4f59\u53c3\u6578\u7684\u8a9e\u6cd5\u975e\u5e38\u7c21\u55ae\uff0c\u53ea\u9700\u8981\u5728\u53c3\u6578\u5217\u8868\u4e2d\u4ee5\u4e09\u500b\u9ede(&#8230;)\u958b\u982d\uff0c\u4e26\u6307\u5b9a\u4e00\u500b\u8b8a\u6578\u540d\u7a31\uff0c\u5c31\u53ef\u4ee5\u5c07\u6240\u6709\u50b3\u5165\u7684\u53c3\u6578\u6536\u96c6\u5230\u4e00\u500b\u9663\u5217\u4e2d\u3002\u4f8b\u5982\uff1a<\/p>\n<pre class=\"brush: typescript\">\nfunction sum(...numbers: number[]) {\n    let total = 0;\n    for (let i = 0; i < numbers.length; i++) {\n        total += numbers[i];\n    }\n    return total;\n}\n\nlet result = sum(1, 2, 3, 4, 5);\nconsole.log(result); \/\/ 15\n<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba sum \u7684\u51fd\u5f0f\uff0c\u5b83\u63a5\u6536\u4efb\u610f\u6578\u91cf\u7684\u53c3\u6578\uff0c\u4e26\u5c07\u5b83\u5011\u6536\u96c6\u5230 numbers \u9663\u5217\u4e2d\uff0c\u7136\u5f8c\u5c07\u6240\u6709\u53c3\u6578\u7684\u548c\u50b3\u56de\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u5269\u4f59\u53c3\u6578\u4e5f\u53ef\u4ee5\u8207\u5176\u4ed6\u53c3\u6578\u6df7\u5408\u4f7f\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre class=\"brush: typescript\">\nfunction sum(a: number, b: number, ...numbers: number[]) {\n    let total = a + b;\n    for (let i = 0; i < numbers.length; i++) {\n        total += numbers[i];\n    }\n    return total;\n}\n\nlet result = sum(1, 2, 3, 4, 5);\nconsole.log(result); \/\/ 15\n<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba sum \u7684\u51fd\u5f0f\uff0c\u5b83\u63a5\u6536\u5169\u500b\u53c3\u6578 a \u548c b\uff0c\u4ee5\u53ca\u4efb\u610f\u6578\u91cf\u7684\u53c3\u6578\uff0c\u4e26\u5c07\u5b83\u5011\u6536\u96c6\u5230 numbers \u9663\u5217\u4e2d\uff0c\u7136\u5f8c\u5c07\u6240\u6709\u53c3\u6578\u7684\u548c\u50b3\u56de\u3002<\/p>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cTypeScript \u7684\u5269\u4f59\u53c3\u6578\u529f\u80fd\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u51fd\u5f0f\u4e2d\u63a5\u6536\u4efb\u610f\u6578\u91cf\u7684\u53c3\u6578\uff0c\u800c\u4e0d\u9700\u8981\u6307\u5b9a\u53c3\u6578\u7684\u6578\u91cf\uff0c\u9019\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u662f\u975e\u5e38\u6709\u7528\u7684\u529f\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3TypeScript\u4e2d\u5269\u4f59\u53c3\u6578(restparameter)\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u6709\u6548\u7387\u7684\u4f7f\u7528\u51fd\u6578\uff0c\u66f4\u5feb\u901f\u7684\u5b8c\u6210\u958b\u767c\u4efb\u52d9\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5269\u4f59\u53c3\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5982\u4f55\u5728TypeScript\u4e2d\u4f7f\u7528\u5b83\u5011\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-4822","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\/pcFK27-1fM","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4822","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=4822"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4822\/revisions"}],"predecessor-version":[{"id":4823,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4822\/revisions\/4823"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}