Only the array length offers a performance benefit.

但仅只有声明数组长度对性能改善有益。

youdao

Two array types are identical if they have identical element types and the same array length.

如果两个数组的长度和元素类型相同，那么它们相同。

youdao

Each of these rewritten loops makes a single property lookup for the array length prior to the loop executing.

这些重写后的循环只在循环执行之前对数组长度进行一次属性查询。

youdao

And in this context, the length of that array is stored in Arg C. Well, let's take a look at a slight variance of this that reveals further what we can do and reveals what a string really is.

关于这点，那个数组的长度被存储在ArgC中,好的，让我们看看这个轻微的变化,那个揭示了我们可以做的,和字符串实际上是什么。

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