{"id":4846,"date":"2023-01-05T10:53:43","date_gmt":"2023-01-05T02:53:43","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4846"},"modified":"2023-01-05T10:53:43","modified_gmt":"2023-01-05T02:53:43","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8typescript%e7%b1%bb%e5%9e%8b%e5%85%bc%e5%ae%b9%e6%80%a7%e6%b3%a8%e8%a7%a3%e6%8f%90%e5%8d%87%e7%a8%8b%e5%bc%8f%e7%a2%bc%e5%93%81%e8%b3%aa","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8typescript%e7%b1%bb%e5%9e%8b%e5%85%bc%e5%ae%b9%e6%80%a7%e6%b3%a8%e8%a7%a3%e6%8f%90%e5%8d%87%e7%a8%8b%e5%bc%8f%e7%a2%bc%e5%93%81%e8%b3%aa\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u5229\u7528TypeScript\u7c7b\u578b\u517c\u5bb9\u6027\u6ce8\u89e3\u63d0\u5347\u7a0b\u5f0f\u78bc\u54c1\u8cea"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Type Compatibility Annotation\"><\/p>\n<h1>TypeScript \u7c7b\u578b\u517c\u5bb9\u6027\u6ce8\u89e3(type compatibility annotation)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e\u7531 Microsoft \u958b\u767c\u7684 JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u985e\u578b\u6aa2\u67e5\u548c\u7a0b\u5f0f\u78bc\u512a\u5316\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u5feb\u901f\u5730\u958b\u767c\u51fa\u512a\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002TypeScript \u7684\u7a0b\u5f0f\u78bc\u53ef\u4ee5\u88ab\u7de8\u8b6f\u6210\u7b26\u5408 ECMAScript 3\uff0c4\uff0c5 \u6216 6 \u7684 JavaScript \u7a0b\u5f0f\u78bc\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u4e0d\u540c\u7684\u700f\u89bd\u5668\u4e0a\u57f7\u884c\u3002<\/p>\n<p>TypeScript \u7684\u7a0b\u5f0f\u78bc\u53ef\u4ee5\u88ab\u7de8\u8b6f\u6210\u7b26\u5408 ECMAScript 3\uff0c4\uff0c5 \u6216 6 \u7684 JavaScript \u7a0b\u5f0f\u78bc\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u4e0d\u540c\u7684\u700f\u89bd\u5668\u4e0a\u57f7\u884c\u3002TypeScript \u63d0\u4f9b\u4e86\u4e00\u7a2e\u53eb\u505a\u300cType Compatibility Annotation\u300d\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u7de8\u5beb\u7a0b\u5f0f\u78bc\u6642\u66f4\u52a0\u5b89\u5168\u548c\u6709\u6548\u7387\u3002<\/p>\n<p><!--more--><\/p>\n<p>Type Compatibility Annotation \u662f\u4e00\u7a2e\u985e\u578b\u6aa2\u67e5\u7684\u6280\u8853\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u7de8\u5beb\u7a0b\u5f0f\u78bc\u6642\u66f4\u52a0\u5b89\u5168\u548c\u6709\u6548\u7387\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<pre class=\"brush: typescript\">\n\/\/ \u5b9a\u7fa9\u4e00\u500b\u51fd\u6578\nfunction add(x: number, y: number): number {\n    return x + y;\n}\n\n\/\/ \u4f7f\u7528 Type Compatibility Annotation \u6aa2\u67e5\u53c3\u6578\u548c\u8fd4\u56de\u503c\nlet result = add(1, 2);\n\n\/\/ \u6aa2\u67e5\u7d50\u679c\nconsole.log(result); \/\/ 3\n<\/pre>\n<p>Type Compatibility Annotation \u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<p>Type Compatibility Annotation \u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<p>Type Compatibility Annotation \u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<p>Type Compatibility Annotation \u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<p>Type Compatibility Annotation \u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<p>Type Compatibility Annotation \u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<p>Type Compatibility Annotation \u662f\u4e00\u7a2e\u975e\u5e38\u6709\u7528\u7684\u6280\u8853\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u7de8\u5beb\u7a0b\u5f0f\u78bc\u6642\u66f4\u52a0\u5b89\u5168\u548c\u6709\u6548\u7387\u3002\u5b83\u53ef\u4ee5\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u78bc\u7684\u6b63\u78ba\u6027\uff0c\u4e26\u4e14\u53ef\u4ee5\u6e1b\u5c11\u7a0b\u5f0f\u78bc\u51fa\u932f\u7684\u6a5f\u7387\u3002Type Compatibility Annotation \u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5feb\u901f\u5730\u958b\u767c\u51fa\u512a\u8cea\u7684\u7a0b\u5f0f\u78bc\uff0c\u4e26\u4e14\u53ef\u4ee5\u6e1b\u5c11\u7a0b\u5f0f\u78bc\u51fa\u932f\u7684\u6a5f\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1aTypeScript\u7c7b\u578b\u517c\u5bb9\u6027\u6ce8\u89e3\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u63d0\u5347\u7a0b\u5f0f\u78bc\u54c1\u8cea\uff0c\u6e1b\u5c11\u7a0b\u5f0f\u932f\u8aa4\uff0c\u4e26\u63d0\u9ad8\u7a0b\u5f0f\u53ef\u8b80\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5229\u7528TypeScript\u7c7b\u578b\u517c\u5bb9\u6027\u6ce8\u89e3\u4f86\u63d0\u5347\u7a0b\u5f0f\u78bc\u54c1\u8cea\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-4846","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\/pcFK27-1ga","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4846","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=4846"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4846\/revisions"}],"predecessor-version":[{"id":4847,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4846\/revisions\/4847"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4846"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}