Vanila JS App to edit images

Converts an image (any type) to a bitmap and draws onto a canvas (CanvasRenderingContext2D).

This will use ECMAScript's latest supported features (as of June 2020) and will not bundle/transpile/polyfill. The only libraries used are:

Browsersync for a local dev server that auto reloads on file change
- (JS modules are requested as CORS so couldn't use a locally loaded html file eg. file://)
Jest for testing/TDD
- To run Jest with no transformations by using node --experimental-vm-modules and "type": "module" See for details (note jest environment node no longer needed) https://stackoverflow.com/a/61653104/2235675
ESLint to keep code pretty and follow conventions

Note: Only tested in Chrome.

Todo

Add tests: index-integration-spec, canvas-spec
Change colour: Select a colour on canvas, select a new colour, change all of selected colour to new colour
- Extend to allow for a range of colours
Consider large images and add waits/notifications for
- HTML embed to complete
- createImageBitmap to complete
Refactor by extending HtmlElement
Change to WebGL
Add drag and drop feature