{"id":2233,"date":"2025-11-11T19:17:06","date_gmt":"2025-11-11T11:17:06","guid":{"rendered":"https:\/\/womeifei.cn\/?p=2233"},"modified":"2025-11-11T19:18:07","modified_gmt":"2025-11-11T11:18:07","slug":"property-descriptors%e5%b1%9e%e6%80%a7%e6%8f%8f%e8%bf%b0%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/womeifei.cn\/index.php\/2025\/11\/11\/property-descriptors%e5%b1%9e%e6%80%a7%e6%8f%8f%e8%bf%b0%e7%ac%a6\/","title":{"rendered":"Property Descriptors(\u5c5e\u6027\u63cf\u8ff0\u7b26)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u2160.\u7b80\u5355\u4ecb\u7ecd<\/h2>\n\n\n\n<p>\u5c5e\u6027\u63cf\u8ff0\u7b26\u662f JavaScript \u4e2d\u7528\u4e8e<strong>\u7cbe\u786e\u63a7\u5236\u5bf9\u8c61\u5c5e\u6027\u884c\u4e3a<\/strong>\u7684\u4e00\u79cd\u673a\u5236\uff0c\u5b83\u5141\u8bb8\u60a8\u5b9a\u4e49\u5c5e\u6027\u7684<strong>\u503c<\/strong>\u4ee5\u53ca\u63a7\u5236\u5c5e\u6027\u7684<strong>\u53ef\u5199\u6027\u3001\u53ef\u679a\u4e3e\u6027\u548c\u53ef\u914d\u7f6e\u6027<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2161.\u5e38\u7528\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1.Object.getOwnPropertyDescriptor(obj, prop)<\/h3>\n\n\n\n<p><strong>\u4f5c\u7528\uff1a<\/strong> \u8fd4\u56de\u7ed9\u5b9a\u5bf9\u8c61\u4e0a<strong>\u7279\u5b9a\u81ea\u6709\u5c5e\u6027<\/strong>\uff08\u975e\u539f\u578b\u94fe\u4e0a\u7684\u5c5e\u6027\uff09\u7684\u63cf\u8ff0\u7b26\u5bf9\u8c61<\/p>\n\n\n\n<p><strong>\u7528\u9014\uff1a<\/strong> \u67e5\u770b\u5c5e\u6027\u7684\u5f53\u524d\u914d\u7f6e<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.Object.getOwnPropertyDescriptors(obj)<\/h3>\n\n\n\n<p><strong>\u4f5c\u7528\uff1a<\/strong> \u8fd4\u56de\u5bf9\u8c61<strong>\u6240\u6709\u81ea\u6709\u5c5e\u6027<\/strong>\u7684\u63cf\u8ff0\u7b26\u5bf9\u8c61<\/p>\n\n\n\n<p><strong>\u7528\u9014\uff1a<\/strong> \u66f4\u597d\u5730\u514b\u9686\u5bf9\u8c61\uff08\u5305\u62ec\u6240\u6709\u5c5e\u6027\u6807\u5fd7\uff09<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.Object.defineProperty(obj, prop, descriptor)<\/h3>\n\n\n\n<p><strong>\u4f5c\u7528\uff1a<\/strong> <strong>\u7cbe\u786e\u5730\u6dfb\u52a0\u6216\u4fee\u6539<\/strong>\u5bf9\u8c61\u4e0a\u7684\u5c5e\u6027\uff0c\u5e76\u8bbe\u7f6e\u5176\u63cf\u8ff0\u7b26<\/p>\n\n\n\n<p><strong>\u7528\u9014\uff1a<\/strong> \u521b\u5efa\u53ea\u8bfb\u5c5e\u6027\u3001\u4e0d\u53ef\u679a\u4e3e\u5c5e\u6027\u6216\u5b9a\u4e49 getter\/setter<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2162.\u5177\u4f53\u914d\u7f6e<\/h2>\n\n\n\n<p><strong>value : \u5c5e\u6027\u7684\u503c<\/strong><\/p>\n\n\n\n<p><strong>writable : \u662f\u5426\u53ef\u4fee\u6539<\/strong><\/p>\n\n\n\n<p><strong>enumerable : \u662f\u5426\u53ef\u679a\u4e3e<\/strong><\/p>\n\n\n\n<p><strong>configurable : \u662f\u5426\u53ef\u518d\u6b21\u914d\u7f6e\u5c5e\u6027\u63cf\u8ff0\u7b26<\/strong><\/p>\n\n\n\n<p><strong>get : \u4e00\u4e2a\u51fd\u6570\u4f5c\u4e3a\u5c5e\u6027\u7684 getter\uff08\u8bfb\u53d6\u5668\uff09  \u5f53\u8bfb\u53d6\u5c5e\u6027\u65f6\uff0c\u4f1a\u8c03\u7528\u6b64\u51fd\u6570<\/strong><\/p>\n\n\n\n<p><strong>set : \u4e00\u4e2a\u51fd\u6570\u4f5c\u4e3a\u5c5e\u6027\u7684 setter\uff08\u8bbe\u7f6e\u5668\uff09  \u5f53\u8bbe\u7f6e\u5c5e\u6027\u65f6\uff0c\u4f1a\u8c03\u7528\u6b64\u51fd\u6570<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2163.\u793a\u4f8b<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/womeifei.cn\/wp-content\/uploads\/2025\/11\/image-2-972x1024.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"972\" height=\"1024\" data-original=\"https:\/\/womeifei.cn\/wp-content\/uploads\/2025\/11\/image-2-972x1024.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2235\"  sizes=\"auto, (max-width: 972px) 100vw, 972px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/womeifei.cn\/wp-content\/uploads\/2025\/11\/image-5-623x1024.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"623\" height=\"1024\" data-original=\"https:\/\/womeifei.cn\/wp-content\/uploads\/2025\/11\/image-5-623x1024.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2238\" style=\"width:589px;height:auto\"  sizes=\"auto, (max-width: 623px) 100vw, 623px\" \/><\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u2160.\u7b80\u5355\u4ecb\u7ecd \u5c5e\u6027\u63cf\u8ff0\u7b26\u662f JavaScript \u4e2d\u7528\u4e8e\u7cbe\u786e\u63a7\u5236\u5bf9\u8c61\u5c5e\u6027\u884c\u4e3a\u7684\u4e00\u79cd\u673a\u5236\uff0c\u5b83\u5141\u8bb8\u60a8\u5b9a\u4e49\u5c5e\u6027\u7684\u503c\u4ee5 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,1],"tags":[],"class_list":["post-2233","post","type-post","status-publish","format-standard","hentry","category-javascript","category-1"],"_links":{"self":[{"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/posts\/2233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2233"}],"version-history":[{"count":3,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/posts\/2233\/revisions"}],"predecessor-version":[{"id":2241,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/posts\/2233\/revisions\/2241"}],"wp:attachment":[{"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}