{"id":52756,"date":"2024-12-03T17:48:53","date_gmt":"2024-12-03T09:48:53","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52756\/"},"modified":"2024-12-03T17:48:53","modified_gmt":"2024-12-03T09:48:53","slug":"chrome-%e6%b5%8f%e8%a7%88%e5%99%a8-onbeforeunload-%e4%ba%8b%e4%bb%b6%e5%a4%b1%e6%95%88%ef%bc%8c%e6%9c%89%e5%93%aa%e4%ba%9b%e6%9b%bf%e4%bb%a3%e6%96%b9%e6%a1%88%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52756\/","title":{"rendered":"Chrome \u6d4f\u89c8\u5668 onbeforeunload \u4e8b\u4ef6\u5931\u6548\uff0c\u6709\u54ea\u4e9b\u66ff\u4ee3\u65b9\u6848\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Chrome \u6d4f\u89c8\u5668 onbeforeunload \u4e8b\u4ef6\u5931\u6548\uff0c\u6709\u54ea\u4e9b\u66ff\u4ee3\u65b9\u6848\uff1f<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aChrome \u6d4f\u89c8\u5668 onbeforeunload \u4e8b\u4ef6\u5931\u6548\uff0c\u6709\u54ea\u4e9b\u66ff\u4ee3\u65b9\u6848\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241123\/1732329962674141ea0ae16.jpg\" class=\"aligncenter\" title=\"Chrome \u6d4f\u89c8\u5668 onbeforeunload \u4e8b\u4ef6\u5931\u6548\uff0c\u6709\u54ea\u4e9b\u66ff\u4ee3\u65b9\u6848\uff1f\u63d2\u56fe\" alt=\"Chrome \u6d4f\u89c8\u5668 onbeforeunload \u4e8b\u4ef6\u5931\u6548\uff0c\u6709\u54ea\u4e9b\u66ff\u4ee3\u65b9\u6848\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>chrome \u6d4f\u89c8\u5668 onbeforeunload \u4e8b\u4ef6\u5931\u6548\uff0c\u6709\u66ff\u4ee3\u65b9\u6848\u5417\uff1f<\/strong><\/p>\n<p>\u5728 chrome \u6d4f\u89c8\u5668\u4e2d\u4f7f\u7528 window.onbeforeunload \u4e8b\u4ef6\u6765\u5b9e\u73b0\u79bb\u5f00\u9875\u9762\u63d0\u793a\u7684\u529f\u80fd\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u8be5\u4e8b\u4ef6\u5df2\u5728 chrome 51 \u4e2d\u88ab\u79fb\u9664\u3002\u5176\u4ed6\u6d4f\u89c8\u5668\u4e5f\u76f8\u5e94\u7248\u672c\u79fb\u9664\u4e86\u6b64\u4e8b\u4ef6\u3002<\/p>\n<p>\u9488\u5bf9\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u66ff\u4ee3\u65b9\u6848\uff1a<\/p>\n<p><strong>\u65b9\u6848 1\uff1abeforeunload \u4e8b\u4ef6<\/strong><\/p>\n<p>\u867d\u7136 onbeforeunload \u4e8b\u4ef6\u5df2\u5f03\u7528\uff0c\u4f46 browsers\uff08\u5305\u62ec chrome\u3001firefox\u3001edge \u7b49\uff09\u4ecd\u7136\u652f\u6301 beforeunload \u4e8b\u4ef6\u3002\u8be5\u4e8b\u4ef6\u4e0e onbeforeunload \u7c7b\u4f3c\uff0c\u533a\u522b\u5728\u4e8e\u5b83\u7684\u89e6\u53d1\u65f6\u673a\u4e0e\u7a97\u53e3\u5173\u95ed\u65f6\u523b\u76f8\u5173\uff0c\u800c onbeforeunload \u4e8b\u4ef6\u7684\u89e6\u53d1\u65f6\u673a\u4e0e\u9875\u9762\u79bb\u5f00\u65f6\u523b\u76f8\u5173\u3002<\/p>\n<pre>window.addeventlistener('beforeunload', function(e) {\n  var message = 'leave?';\n  e = e || window.event;\n  if (e) {\n    e.returnvalue = message;\n  }\n  return message;\n});<\/pre>\n<p><strong>\u65b9\u6848 2\uff1a\u9875\u9762\u53ef\u89c1\u6027 api<\/strong><\/p>\n<p>\u9875\u9762\u53ef\u89c1\u6027 api \u53ef\u4ee5\u7528\u6765\u68c0\u6d4b\u6d4f\u89c8\u5668\u7a97\u53e3\u662f\u5426\u5904\u4e8e\u53ef\u89c1\u72b6\u6001\u3002\u5f53\u7a97\u53e3\u4e0d\u53ef\u89c1\u65f6\uff0c\u53ef\u4ee5\u89e6\u53d1\u63d0\u793a\u3002<\/p>\n<pre>document.addeventlistener('visibilitychange', function() {\n  if (document.visibilitystate === 'hidden') {\n    \/\/ \u9875\u9762\u79bb\u5f00\uff0c\u89e6\u53d1\u63d0\u793a\n  }\n});<\/pre>\n<p><strong>\u65b9\u6848 3\uff1a\u4f1a\u8bdd\u5b58\u50a8<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4f1a\u8bdd\u5b58\u50a8\u6765\u4fdd\u5b58\u7528\u6237\u8f93\u5165\u7684\u6570\u636e\u3002\u8fd9\u6837\uff0c\u5f53\u7528\u6237\u79bb\u5f00\u9875\u9762\u540e\u518d\u56de\u6765\u65f6\uff0c\u53ef\u4ee5\u6062\u590d\u4e4b\u524d\u8f93\u5165\u7684\u6570\u636e\u3002<\/p>\n<pre>\/\/ \u4fdd\u5b58\u6570\u636e\u5230\u4f1a\u8bdd\u5b58\u50a8\nsessionStorage.setItem('myData', JSON.stringify(myData));\n\n\/\/ \u4ece\u4f1a\u8bdd\u5b58\u50a8\u4e2d\u6062\u590d\u6570\u636e\nvar myData = JSON.parse(sessionStorage.getItem('myData'));<\/pre>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aChrome \u6d4f\u89c8\u5668 onbeforeunload \u4e8b\u4ef6\u5931\u6548\uff0c\u6709\u54ea\u4e9b\u66ff\u4ee3\u65b9\u6848\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   \u7535\u8111\u8fdb\u82f1\u96c4\u8054\u76df\u5c31\u6b7b\u673a\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>Chrome \u6d4f\u89c8\u5668 onbeforeunload \u4e8b\u4ef6\u5931\u6548\uff0c\u6709\u54ea\u4e9b\u66ff\u4ee3\u65b9\u6848\uff1f 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