1.0.2 • Published 9 years ago
count-by v1.0.2
count-by.js
Utility function to count number of arbitrary object properties in a list
Install
npm install count-by
Usage
var countBy = require('count-by');
var orders = [
{ id: 1, user: { name: 'Alice' } }
, { id: 2, user: { name: 'Bob' } }
, { id: 3, user: { name: 'Eve' } }
, { id: 4, user: { name: 'Alice' } }
];
var names = countBy(orders, 'user.name');
// { Alice: 2, Bob: 1, Eve: 1 }
License
MIT