prefer-array-find.md

Prefer .find(…) over the first element from .filter(…)

Array#find() breaks the loop as soon as it finds a match and doesn't create a new array.

This rule is fixable unless default values are used in declaration or assignment.

Fail

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

const item = array.filter(x => isUnicorn(x)).shift();

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

[item] = array.filter(x => isUnicorn(x));

Pass

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

item = array.find(x => isUnicorn(x));