{"id":53536,"date":"2024-12-03T13:37:23","date_gmt":"2024-12-03T05:37:23","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53536\/"},"modified":"2024-12-03T13:37:23","modified_gmt":"2024-12-03T05:37:23","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e4%bd%bf%e7%94%a8-object-defineproperty-%e5%8a%ab%e6%8c%81%e5%af%b9%e8%b1%a1%e6%96%b9%e6%b3%95%e6%97%b6%e4%bc%9a%e8%a7%a6%e5%8f%91%e4%b8%a4%e6%ac%a1%e6%89%a7%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53536\/","title":{"rendered":"\u4e3a\u4ec0\u4e48\u4f7f\u7528 Object.defineProperty \u52ab\u6301\u5bf9\u8c61\u65b9\u6cd5\u65f6\u4f1a\u89e6\u53d1\u4e24\u6b21\u6267\u884c\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u4e3a\u4ec0\u4e48\u4f7f\u7528 Object.defineProperty \u52ab\u6301\u5bf9\u8c61\u65b9\u6cd5\u65f6\u4f1a\u89e6\u53d1\u4e24\u6b21\u6267\u884c\uff1f<\/h1>\n<p>\u6700\u8fd1\u53d1\u73b0\u4e0d\u5c11\u5c0f\u4f19\u4f34\u90fd\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u5f88\u611f\u5174\u8da3\uff0c\u6240\u4ee5\u4eca\u5929\u7ee7\u7eed\u7ed9\u5927\u5bb6\u4ecb\u7ecd<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\uff0c\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u4e3a\u4ec0\u4e48\u4f7f\u7528 Object.defineProperty \u52ab\u6301\u5bf9\u8c61\u65b9\u6cd5\u65f6\u4f1a\u89e6\u53d1\u4e24\u6b21\u6267\u884c\uff1f\u300b<\/span>\u4e3b\u8981\u5185\u5bb9\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01\u5f53\u7136\u5982\u679c\u9605\u8bfb\u672c\u6587\u65f6\u5b58\u5728\u4e0d\u540c\u60f3\u6cd5\uff0c\u53ef\u4ee5\u5728\u8bc4\u8bba\u4e2d\u8868\u8fbe\uff0c\u4f46\u662f\u8bf7\u52ff\u4f7f\u7528\u8fc7\u6fc0\u7684\u63aa\u8f9e~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241201\/1733049768674c3da8eb630.jpg\" class=\"aligncenter\" title=\"\u4e3a\u4ec0\u4e48\u4f7f\u7528 Object.defineProperty \u52ab\u6301\u5bf9\u8c61\u65b9\u6cd5\u65f6\u4f1a\u89e6\u53d1\u4e24\u6b21\u6267\u884c\uff1f\u63d2\u56fe\" alt=\"\u4e3a\u4ec0\u4e48\u4f7f\u7528 Object.defineProperty \u52ab\u6301\u5bf9\u8c61\u65b9\u6cd5\u65f6\u4f1a\u89e6\u53d1\u4e24\u6b21\u6267\u884c\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>Object.defineProperty \u901a\u8fc7 Proxy \u52ab\u6301\u5bf9\u8c61\u89e6\u53d1\u4e24\u6b21\u6267\u884c\u7684\u539f\u56e0<\/strong><\/p>\n<p>\u5728\u4ee3\u7801\u4e2d\uff0c\u52ab\u6301\u4e86 test \u5bf9\u8c61\u4e0a\u7684 querySelector \u65b9\u6cd5\uff0c\u4f7f\u5176\u8fd4\u56de\u4e00\u4e2a\u5bf9 document.querySelector \u7684\u4ee3\u7406\u5bf9\u8c61\u3002<\/p>\n<p><strong>\u7b2c\u4e00\u6b21\u6267\u884c<\/strong><\/p>\n<p>\u5f53\u7b2c\u4e00\u6b21\u8c03\u7528 test.querySelector \u65f6\uff1a<\/p>\n<ul>\n<li>\u89e6\u53d1 Object.defineProperty \u52ab\u6301\uff0c\u8fd4\u56de\u4ee3\u7406\u5bf9\u8c61\u3002<\/li>\n<li>\u4ee3\u7406\u5bf9\u8c61\u7684 apply \u65b9\u6cd5\u88ab\u8c03\u7528\uff0c\u65e5\u5fd7\u8f93\u51fa test {}\uff0c\u56e0\u4e3a thisArgs \u6307\u5411 test \u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<p><strong>\u7b2c\u4e8c\u6b21\u6267\u884c<\/strong><\/p>\n<p>\u4ee3\u7406\u5bf9\u8c61\u7684 apply \u65b9\u6cd5\u4e2d\u6709\u4ee3\u7801 thisArgs.querySelector.apply(document, args)\uff0c\u8fd9\u76f8\u5f53\u4e8e\u8c03\u7528 test.querySelector.apply(document, args)\uff1a<\/p>\n<ul>\n<li>test.querySelector \u518d\u6b21\u89e6\u53d1 Object.defineProperty \u52ab\u6301\u3002<\/li>\n<li>\u6b64\u65f6 thisArgs \u6307\u5411 document\uff0c\u56e0\u4e3a apply \u65b9\u6cd5\u6539\u53d8\u4e86\u4e0a\u4e0b\u6587\u3002<\/li>\n<li>\u4ee3\u7406\u5bf9\u8c61\u7684 apply \u65b9\u6cd5\u88ab\u518d\u6b21\u8c03\u7528\uff0c\u65e5\u5fd7\u8f93\u51fa test #document\u3002<\/li>\n<\/ul>\n<p><strong>\u603b\u7ed3<\/strong><\/p>\n<p>\u56e0\u6b64\uff0c\u6267\u884c\u89e6\u53d1\u4e86\u4e24\u6b21\uff1a<\/p>\n<ul>\n<li>\u7b2c\u4e00\u6b21\u6267\u884c\u65f6\uff0cthisArgs \u6307\u5411 test\uff0c\u4f46\u8fd4\u56de\u4e86\u4ee3\u7406\u5bf9\u8c61\u3002<\/li>\n<li>\u7b2c\u4e8c\u6b21\u6267\u884c\u65f6\uff0cthisArgs \u6307\u5411 document\uff0c\u56e0\u4e3a\u4ee3\u7406\u5bf9\u8c61\u7684 apply \u65b9\u6cd5\u66f4\u6539\u4e86\u4e0a\u4e0b\u6587\u3002<\/li>\n<\/ul>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u4e3a\u4ec0\u4e48\u4f7f\u7528 Object.defineProperty \u52ab\u6301\u5bf9\u8c61\u65b9\u6cd5\u65f6\u4f1a\u89e6\u53d1\u4e24\u6b21\u6267\u884c\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   \u5982\u4f55\u901a\u8fc7\u5feb\u6377\u952e\u5feb\u901f\u9501\u5b9a\u60a8\u7684\u7535\u8111\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4e3a\u4ec0\u4e48\u4f7f\u7528 Object.defineProperty \u52ab\u6301\u5bf9\u8c61\u65b9\u6cd5\u65f6\u4f1a\u89e6\u53d1\u4e24\u6b21\u6267\u884c\uff1f \u6700\u8fd1\u53d1\u73b0\u4e0d\u5c11\u5c0f\u4f19\u4f34\u90fd\u5bf9\u6587\u7ae0\u5f88\u611f\u5174\u8da3\uff0c\u6240\u4ee5\u4eca\u5929\u7ee7\u7eed\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u6587\u7ae0\u76f8\u5173\u7684\u77e5\u8bc6\uff0c\u672c\u6587\u300a\u4e3a\u4ec0\u4e48\u4f7f\u7528 Object.defineProperty \u52ab\u6301\u5bf9\u8c61\u65b9\u6cd5\u65f6\u4f1a\u89e6\u53d1\u4e24\u6b21\u6267\u884c\uff1f\u300b\u4e3b\u8981\u5185\u5bb9\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01\u5f53\u7136\u5982\u679c\u9605\u8bfb\u672c\u6587\u65f6\u5b58\u5728\u4e0d\u540c\u60f3\u6cd5\uff0c\u53ef\u4ee5\u5728\u8bc4\u8bba\u4e2d\u8868\u8fbe\uff0c\u4f46\u662f\u8bf7\u52ff\u4f7f\u7528\u8fc7\u6fc0\u7684\u63aa\u8f9e~ Object.defineProperty \u901a\u8fc7 Proxy \u52ab\u6301\u5bf9\u8c61\u89e6\u53d1\u4e24\u6b21\u6267\u884c\u7684\u539f\u56e0 \u5728\u4ee3\u7801\u4e2d\uff0c\u52ab\u6301\u4e86 test \u5bf9\u8c61\u4e0a\u7684 querySelector \u65b9\u6cd5\uff0c\u4f7f\u5176\u8fd4\u56de\u4e00\u4e2a\u5bf9 document.querySelector \u7684\u4ee3\u7406\u5bf9\u8c61\u3002 \u7b2c\u4e00\u6b21\u6267\u884c \u5f53\u7b2c\u4e00\u6b21\u8c03\u7528 test.querySelector \u65f6\uff1a \u89e6\u53d1 Object.defineProperty \u52ab\u6301\uff0c\u8fd4\u56de\u4ee3\u7406\u5bf9\u8c61\u3002 \u4ee3\u7406\u5bf9\u8c61\u7684 apply \u65b9\u6cd5\u88ab\u8c03\u7528\uff0c\u65e5\u5fd7\u8f93\u51fa test {}\uff0c\u56e0\u4e3a thisArgs \u6307\u5411 test \u5bf9\u8c61\u3002 \u7b2c\u4e8c\u6b21\u6267\u884c \u4ee3\u7406\u5bf9\u8c61\u7684 apply \u65b9\u6cd5\u4e2d\u6709\u4ee3\u7801 thisArgs.querySelector.apply(document, args)\uff0c\u8fd9\u76f8\u5f53\u4e8e\u8c03\u7528 test.querySelector.apply(document, args)\uff1a test.querySelector \u518d\u6b21\u89e6\u53d1 Object.defineProperty \u52ab\u6301\u3002 \u6b64\u65f6 thisArgs \u6307\u5411 document\uff0c\u56e0\u4e3a apply \u65b9\u6cd5\u6539\u53d8\u4e86\u4e0a\u4e0b\u6587\u3002 \u4ee3\u7406\u5bf9\u8c61\u7684 apply \u65b9\u6cd5\u88ab\u518d\u6b21\u8c03\u7528\uff0c\u65e5\u5fd7\u8f93\u51fa test [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-53536","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=53536"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53536\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=53536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=53536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=53536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}