canvas to image HTML, javascript

save canvas to image and then show on your div

1. create empty Image() object
2. convert canvas to DataURL image file
3. create HTML element for img
4. Inject imageURI to new HTML element source
5. append your HTML element to document.
6. Inject imageURI to your Image() object source

let myImage = new Image();
let imageURI = this.myCanvas.toDataURL("image/png");

let newImageElement = document.createElement('img');
newImageElement.setAttribute("id", "new-image");
newImageElement.src = imageURI;
document.body.appendChild(newImageElement);
this.myImage.src = imageURI;

funny thing I found.

image/jpg, image/png: saves transparent background
image/jpeg: saves transparent area as black color

Blob instead of dataURL

• convert dataURL to blob
  https://charlie0301.blogspot.com/2014/10/html5-canvas-blob-data-post-upload.html

• show blob
  https://stackoverflow.com/questions/7650587/using-javascript-to-display-a-blob