@uppy/utils/lib/canvasToBlob.js

Shared utility functions for Uppy Core and plugins maintained by the Uppy team.

/**
 * Save a <canvas> element's content to a Blob object.
 *
 * @param {HTMLCanvasElement} canvas
 * @returns {Promise}
 */
export default function canvasToBlob(canvas, type, quality) {
  return new Promise(resolve => {
    canvas.toBlob(resolve, type, quality);
  });
}