Array.Erase method

Explanation	Deletes the element at the specified position or all elements. Added since Version 4.0.3 Added since Mobile Version 3.0.0
Call format	arr.Erase( [ index ] )
Return value	None
Argument	index	Specify the index that specifies the element you want to delete. If index is a number, subsequent elements with the number as a subscript are padded forward. If index is omitted, all elements will be deleted.
Exception	None
Example of use	`var arr = new Array("test1", "test2", "test3", "test4"); print(arr, "\n"); arr.Erase(2); print(arr, "\n"); arr.Erase(); print(arr.Length, "\n");`
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