Function isInstanceOf

js/load-image.js:85–88

* Cross-frame instanceof check. * * @param {string} type Instance type * @param {object} obj Object instance * @returns {boolean} Returns true if the object is of the given instance.

(type, obj)

   * @returns {boolean} Returns true if the object is of the given instance.
   */
  function isInstanceOf(type, obj) {
    // Cross-frame instanceof check
    return Object.prototype.toString.call(obj) === '[object ' + type + ']'
  }

  /**
   * @typedef { HTMLImageElement|HTMLCanvasElement } Result