groupBy

groupBy groups an array of items by the value returned by the second argument callback function.

import { groupBy } from '@rvoh/dream'

const pets = [
  { type: 'cat', name: 'Aster' },
  { type: 'dog', name: 'Bingo' },
  { type: 'cat', name: 'Milo' },
]

const grouped = groupBy(pets, pet => pet.type)
// {
//   cat: [
//          { type: 'cat', name: 'Aster' },
//          { type: 'cat', name: 'Milo' },
//        ],
//   dog: [
//          { type: 'dog', name: 'Bingo' },
//        ]
// }