fredhelp.js

  this.loadImages = function(callback) {
    // Load images to list
    for (let i = 0; i < this.imgCount; i++) {
      this.images[i] = loadImage(this.path + 'brain_' + str(i) + '.jpg');
    }

		callback();
  };

// Final setup of object
  this.loadImages(() => {
    // Do stuff afterwards
  });