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笔试题--JS中的this
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| var length = 10; | |
| function fn() { | |
| console.log(this.length); | |
| } | |
| var obj = { | |
| length: 5, | |
| method: function(fn) { | |
| fn(); | |
| arguments[0](); | |
| } | |
| }; | |
| obj.method(fn, 1); | |
| // 结果是: 10 2 |
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