function createPadding(string, length, chars) {
	      var strLength = string.length;
	      length = +length;

	      if (strLength >= length || !nativeIsFinite(length)) {
	        return '';
	      }
	      var padLength = length - strLength;
	      chars = chars == null ? ' ' : (chars + '');
	      return repeat(chars, nativeCeil(padLength / chars.length)).slice(0, padLength);
	    }
Creates the padding required for `string` based on the given `length`.
The `chars` string is truncated if the number of characters exceeds `length`.

@private
@param {string} string The string to create padding for.
@param {number} [length=0] The padding length.
@param {string} [chars=' '] The string used as padding.
@returns {string} Returns the pad for `string`.