World's first website

• World Wide Web

Reference Links and examples

• Inaccessible Button

• Accessible Button

• Inaccessible Modal

• Accessible Modal

• Common keyCode event listeners to support acccessibility

• Managing focus with modals

Important links for reading about a11y

• W3C Web Accessibility Initiative / WAI

• Accessibility principles

• MDN Web Accessibility

Tools and extensions for testing in browser

• Lighthouse audit

• Accessibility pane

• aXe extension

• Wave evaluation tool

VSCode plugins for development

• Web Accessibility

• eslint-plugin-jsx-a11y

• webhint

Useful resources

• WAI-ARIA Authoring practices

• Web accessibility: getting Started - Brian Tesse

• How to write accessible JavaScript - Ben Robertson

• keyCode MDN link - Thanks 'Stefan Bauer' for this info.

For mobile devices

• Mobile accessibility testing tools - Thanks 'Henry Moule' for asking

Note: Feel free to add any resources to this list. Thank you !!