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for..of 并不适用遍历 类数组对象 #30

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daihuaxing opened this issue May 9, 2022 · 1 comment
Open

for..of 并不适用遍历 类数组对象 #30

daihuaxing opened this issue May 9, 2022 · 1 comment

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@daihuaxing
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壹2.9.2的总结这里
总结：
for..of适用遍历数组/类数组对象/字符串/map/set等拥有迭代器对象的集合，但是不能遍历对象，因为没有迭代器对象。遍历对象通常用for...in来遍历对象的键名。
@chengwb53
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for of MDN
支持NodeList（以及其他 DOM 集合）
arguments 对象

自定义类数组不支持

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@chengwb53 @daihuaxing