Notable omissions: immer, Storybook, date-fns

[slikts]

Style-guide driven development using tools like Storybook or Styleguidist is a very relevant area to a component framework like React.

date-fns is a popular alternative to Moment that's more lightweight and has a nicer API; detailed comparison.

immer is a fantastic improvement over Immutable.js regarding interop and ease of use.

[slikts]

Something else missing is build preset tools like create-react-app and Neutrino.js. These are fairly important since creating and maintaining build boilerplate is a problem.