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一处描述错误
这里的`数值`应该改为`数组`
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docs/iterator.md

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@@ -223,7 +223,7 @@ let obj = {
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```
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对于类似数组的对象(存在数值键名和length属性),部署Iterator接口,有一个简便方法,就是`Symbol.iterator`方法直接引用数值的Iterator接口
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对于类似数组的对象(存在数值键名和length属性),部署Iterator接口,有一个简便方法,就是`Symbol.iterator`方法直接引用数组的Iterator接口
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```javascript
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NodeList.prototype[Symbol.iterator] = Array.prototype[Symbol.iterator];

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