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docs(map): fix #949
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@ -833,6 +833,15 @@ strMapToObj(myMap)
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**(4)对象转为 Map**
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对象转为 Map 可以通过`Object.entries()`。
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```javascript
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let obj = {"a":1, "b":2};
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let map = new Map(Object.entries(obj));
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```
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此外,也可以自己实现一个转换函数。
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```javascript
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function objToStrMap(obj) {
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let strMap = new Map();
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