group
Categorize elements from an array into distinct groups
133 bytes
since v12.1.0
Usage
Given an array of items, group
will build up an object where each key is an array of the items that belong in that group.
import * as _ from 'radashi'
const fish = [ { name: 'Marlin', source: 'ocean', }, { name: 'Bass', source: 'lake', }, { name: 'Trout', source: 'lake', },]
const fishBySource = _.group(fish, f => f.source) // => { ocean: [marlin], lake: [bass, trout] }