The delete operator sets an array element to the undefined value, but the element itself continues to
exist. To actually delete an element, so that all elements above it are shifted down to lower indexes, you
must use an array method. Array.shift() deletes the first element of an array, Array.pop() deletes the
last element, and Array.splice() deletes a contiguous range of elements from an array.
Deleting Array Elements
最新推荐文章于 2023-12-11 23:11:02 发布
本文详细介绍了JavaScript中删除数组元素的不同方法，包括使用delete操作符将元素设置为undefined，以及利用Array.shift(), Array.pop()和Array.splice()等方法实现元素的实际删除。这些方法可以帮助开发者更好地管理和操作数组。
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