# lodash.countby v4.1.1 The [lodash](https://lodash.com/) method `_.countBy` exported as a [Node.js](https://nodejs.org/) module. ## Installation Using npm: ```bash $ {sudo -H} npm i -g npm $ npm i --save lodash.countby ``` In Node.js: ```js var countBy = require('lodash.countby'); ``` See the [documentation](https://lodash.com/docs#countBy) or [package source](https://github.com/lodash/lodash/blob/4.1.1-npm-packages/lodash.countby) for more details.