Created
January 29, 2018 05:21
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对象解构赋值 wtf
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| let reslt, x; | |
| reslt = [...null]; // TypeError: null is not iterable | |
| reslt = [...undefined]; // TypeError: undefined is not iterable | |
| reslt = {...null}; // {} | |
| reslt = {...undefined}; // {} | |
| if (x in null) {} | |
| // TypeError: Cannot use 'in' operator to search for 'undefined' in null | |
| if (x in undefined) {} | |
| // TypeError: Cannot use 'in' operator to search for 'undefined' in undefined | |
| for (x in null) {} | |
| // correct | |
| for (x in undefined) {} | |
| // correct | |
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