Created
September 9, 2015 09:39
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onbeforeunload demo
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"> | |
| <title>Examples</title> | |
| <link href="" rel="stylesheet"> | |
| </head> | |
| <body> | |
| <a href="https://www.google.com.tw/?gfe_rd=cr&ei=6evvVeztB4rT8AWBzL-ABw">A</a> | |
| <a href="https://tw.yahoo.com/">B</a> | |
| <a href="http://www.pchome.com.tw/">C</a> | |
| </body> | |
| <script> | |
| var a = document.getElementsByTagName('a'), | |
| link = ''; | |
| var fun = function (e) { | |
| console.log(e); | |
| if (link === 'https://tw.yahoo.com/' || link === '') { | |
| link = ''; | |
| return 'Exit?'; | |
| } | |
| return; | |
| }; | |
| for (var i = 0; i < a.length; i++) { | |
| a[i].onclick = function (e) { | |
| link = e.target.href; | |
| }; | |
| } | |
| window.onbeforeunload = fun; | |
| </script> | |
| </html> |
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