arrays-strict-equality.es6

const _ = require('lodash');

const array1 = [1, 2];

const array2 = [1, 2];

const result = array1 === array2;
result

console.log([] === [])
console.log([] == [])
console.log(Object.is([], []))

const ref = [];
console.log(ref === ref)
console.log(ref == ref)
console.log(Object.is(ref, ref))

const emptyArray = [];
console.log(emptyArray === emptyArray)

// good
console.log(_.difference([1, 2], [1, 2]).length === 0)

// better (deep comparison, https://lodash.com/docs/4.17.10#isEqual)
console.log(_.isEqual([1, 2], [1, 2]))