Rule Proposal: replace .filter()[0] with .find()

[oscarmarcelo]

Honestly, I'm not sure if I should add this here or in unicorn, but here it goes:

Rule Proposal

A rule to suggest replacing the use of .filter()[0] with .find(), since find breaks the loop as soon as it finds a match.

Fail

const item = array.filter(x => x === y)[0];

Pass

const item = array.find(x => x === y);

For the rule name, may I suggest something like no-filter-zero-index.

[sindresorhus]

This needs to be opened on eslint-plugin-unicorn.