Every web framework tutorial ever.

Axe-Core is a tool for automatically testing HTML user interfaces to ensure that they accessible by people with disabilities.

https://github.com/dequelabs/axe-core

Prototyping and designing in React. Outputs to Sketch.

http://airbnb.design/painting-with-code/

https://cycle.js.org/

Svelte is a frameworkless way to build web components.

It might be nice to pair this with Redux state management or a streams manager like RxJs.

https://svelte.technology/guide

Brett Uglow is Chief Engineer (Web) at Odecee in Melbourne.

https://medium.com/@u_glow/my-first-svelte-component-on-npm-and-why-its-a-big-deal-c4568f52de97

Introduction to React Fiber

https://www.youtube.com/watch?v=ZCuYPiUIONs&feature=share

Tree-shaking optimisation in Webpack.

http://2ality.com/2015/12/webpack-tree-shaking.html

https://hackernoon.com/how-it-feels-to-learn-javascript-in-2016-d3a717dd577f