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A simple & elegant framework for nodejs ,a combination of cluster/route/dispater/controller/log system
定义常量说
"不使用 const 关键字 虽然V8 和 Mozilla 都支持它,但它不是ECMA 标准"
不是么。。
不好意思,不知道在哪里能问到你。
我看在nodejs编码规范时候,看到这样一句话
“for-in 循环,仅在 object/hash/map 时使用,绝不要对Array 使用 ”
请问为什么不能在Array中使用for-in循环? 是因为array中有length等其他属性吗?
增加额外的开销吗?
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