array.groupBy in TypeScript

Question

The basic array class has .map, .forEach, .filter, and .reduce, but .groupBy i noticably absent, preventing me f

Answer 1

A good option might be lodash.

npm install --save lodash
npm install --save-dev @types/lodash

Just import it import * as _ from 'lodash' and use.

Example

_.groupBy(..)
_.map(..)
_.filter(..)