Created
July 24, 2012 04:16
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localstorage 不能直接包
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>LocalStorage fault</title> | |
| <link rel="stylesheet" href="http://typo.sofish.de/typo.css" /> | |
| </head> | |
| <body class="typo" style="width:800px;margin:30px auto;"> | |
| <h3># error message</h3> | |
| <blockquote> | |
| NS_ERROR_XPC_BAD_OP_ON_WN_PROTO: Illegal operation on WrappedNative prototype object | |
| </blockquote> | |
| <h3># origin code:</h3> | |
| <pre> | |
| var obj = (function(w){ | |
| return { | |
| set: localStorage.setItem, | |
| get: localStorage.getItem, | |
| clear: localStorage.clear | |
| } | |
| })(window); | |
| obj.set('key', 'the value'); | |
| </pre> | |
| <h3># solution:</h3> | |
| <pre> | |
| var obj = (function(w){ | |
| return { | |
| set: function(key, value) { | |
| return localStorage.setItem(key, value) | |
| }, | |
| get: function(key){ | |
| return localStorage.getItem(key) | |
| } | |
| clear: function(){ | |
| return localStorage.clear() | |
| } | |
| } | |
| })(window); | |
| obj.set('key', 'the value'); | |
| </pre> | |
| <script> | |
| var obj = (function(w){ | |
| return { | |
| set: localStorage.setItem, | |
| get: localStorage.getItem, | |
| clear: localStorage.clear | |
| } | |
| })(window); | |
| obj.set('key', 'the value'); | |
| </script> | |
| </body> | |
| </html> |
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