function getNeededLengthOfNewArray(iSourceIndex, iTargetIndex) {
		return (Math.max(iSourceIndex, iTargetIndex) || 0) + 1;
	}
Retrieves the length of the array.

@param {int} iSourceIndex - Source index of the element
@param {int} iTargetIndex - Target index of the element
@returns {int} Highest Index or 0