Get unique objects from array of objects based on single/multiple keys.
$ npm i unique-objects
This can be helpful in cases where you need unique records based on a single key or multiple keys.
const uniqueObjects = require('unique-objects');
const users = [
{ id: 1, username: 'bret' },
{ id: 2, username: 'samantha' },
{ id: 2, username: 'samantha' },
{ id: 2, username: 'samantha2' },
{ id: 3, username: 'elvis' },
{ id: 3, username: 'elvis2' },
{ id: 3, username: 'elvis2' }
];
// Get unique objects in the users array based on just id
uniqueObjects(users, ['id']);
//=> Returns just 3 unique objects out of 7
// [
// { "id": 1, "username": "bret"},
// { "id": 2, "username": "samantha2"},
// { "id": 3, "username": "elvis2"},
// ]
// Get unique objects in the users array based on both id & username
uniqueObjects(users, ['id', 'username']);
//=> Returns just 5 unique objects out of 7
// [
// { "id": 1, "username": "bret"},
// { "id": 2, "username": "samantha"},
// { "id": 2, "username": "samantha2"},
// { "id": 3, "username": "elvis"},
// { "id": 3, "username": "elvis2"},
// ]Type: Array
Default: []
Must be a JavaScript Array. This is main array of object that we are going to process.
Type: Array
Default: []
Must be a JavaScript Array. This is the array of key(s) in the object that is used to find object is unique or not.
MIT © Palash Mondal