dist/cropper.common.js
function scaleX(_scaleX) {
    var scaleY = this.imageData.scaleY;
    return this.scale(_scaleX, isNumber(scaleY) ? scaleY : 1);
  }
function scaleX(_scaleX) {
    var scaleY = this.imageData.scaleY;
    return this.scale(_scaleX, isNumber(scaleY) ? scaleY : 1);
  }
Scale the image on the x-axis.
@param {number} scaleX - The scale ratio on the x-axis.
@returns {Cropper} this