UString.CharAt Method

Explanation	Returns the character at the specified position.
Call format	var n = str.CharAt( indx )
Return value	Returns one character at the specified position as a UString type.
Arguments	integer indx	Position of the character to be extracted Specify a number starting from 0.
Exception	Func-4	Invalid argument
Example of use	`var str = new UString("ABCDEF"); print(str.CharAt(3), "\n");`
Related item	CharCodeAt method