code: function (low, high) {
              return new me.ObservableVector2d(me.Math.clamp(this.x, low, high), me.Math.clamp(this.y, low, high), {onUpdate: this.onUpdate});
          }
docs: Clamp the vector value within the specified value range
  @name clamp
  @memberOf me.ObservableVector2d
  @function
  @param {Number} low
  @param {Number} high
  @return {me.ObservableVector2d} new me.ObservableVector2d