1  /** Used to match a single whitespace character. */
 2  var reWhitespace = /\s/;
 3  
 4  /**
 5   * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace
 6   * character of `string`.
 7   *
 8   * @private
 9   * @param {string} string The string to inspect.
10   * @returns {number} Returns the index of the last non-whitespace character.
11   */
12  function trimmedEndIndex(string) {
13    var index = string.length;
14  
15    while (index-- && reWhitespace.test(string.charAt(index))) {}
16    return index;
17  }
18  
19  module.exports = trimmedEndIndex;