code: function defaultComparison(left, right) {
          var leftS = $toString(left),
              rightS = $toString(right),
              val = 1;
  
          if (leftS === rightS) {
              val = +0;
          } else if (leftS < rightS) {
              val = -1;
          }
  
          return val;
      }
docs: Default compare function for stableSort.
  @private
  @function defaultComparison
  @param {*} left
  @param {*} right
  @returns {number}