v5 without jQuery

Created by: Johann-S

Plugins:

• Util (#23565)
• Alert (#23596)
• Button (#23600)
• Carousel (#23658)
• Collapse (#23958)
• Dropdown (#24099)
• Modal (#23955)
• Popover (#24014)
• ScrollSpy (#24879)
• Tab (#24094)
• Tooltip (#24014)

Tests:

• Remove the use of Data in our unit tests (#26685)
• Remove the use of EventHandler in our unit tests (#26685)
• Fix coverage by testing our new internal objects

Build:

• Remove jQuery in our Rollup config
• See why there is no const or let in the dist files. (bootstrap.js)

Docs:

• Update plugin pages

  • Alert (#27062)
  • Button (#27173)
  • Carousel (#27173) - still has a few references to $()
  • Collapse (#27173) - still has a few references to $()
  • Dropdown
  • Modal
  • Popover
  • ScrollSpy
  • Tab
  • Toasts
  • Tooltip

• Other doc pages

  • List group
  • Forms
  • Nav
  • getting-started/browsers-devices.md
  • getting-started/javascript.md

• Stop using jQuery

• Update /getting-started/browsers-devices/ and remove any IE references

• Add a section explaining that it's possible to use this version with and without jQuery

• Search docs for jquery (not case sensitive) and $(

• Replace https://codepen.io/Johann-S/pen/djJYPb or add a codepen with vanilla JS

• Maybe explain when an element is considered visible in the scrollspy callout

Browser compatibility:

• Remove IE

Various

• Make sure we don't reference old versions like 4.1.3 in any newly added files
• Same as above for copyright year
• Drop Util.TRANSITION_END?
• See if we really need DOMContentLoaded anymore in tests and docs.

Demo:

https://deploy-preview-23586--twbs-bootstrap.netlify.com/

If you want to help us do not hesitate to create a PR which targets this branch v4-without-jquery.