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safari 不能用 true / false 来做排序
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| // firefox 和 chrome 是 [1024, 6, 5, 3, 2, 1] | |
| // safari 中顺序没变 | |
| [1,3,2,5,6,1024].sort(function(a, b) { | |
| return b > a; | |
| }); | |
| // 在各中浏览器工作一致的方法 | |
| // 用正负和零来排序，而不是 true/false | |
| [1,3,2,5,6,1024].sort(function(a, b) { | |
| return b - a; | |
| }); |
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