count-by.js
Utility function to count number of arbitrary object properties in a list
Install
npm install count-by
Usage
var countBy = ;var orders = id: 1 user: name: 'Alice' id: 2 user: name: 'Bob' id: 3 user: name: 'Eve' id: 4 user: name: 'Alice' ;var names = ;// { Alice: 2, Bob: 1, Eve: 1 }
License
MIT