If this is true, then it saves the string value for the contents of the element in the items array.
如果是这样,它就将字符串值保存为条目数组中元素的内容。
The element type of the array and the type of the value must be of the same type.
数组的元素类型和值的类型必须相同。
But as we hope we've shown in the table, that really represents an array with a single element whose value is null, not a null array.
但是,正如我们希望的,在表中已经显示,它真正表示的是含有单一元素的数组,元素的值为“零”(null),而不是一个“零”(null)数组。
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