CODEWITHSUNDEEP
lodash
Jan
Jan

Reputation: 3401

lodash uniqWith with an array of objects

i have an array of objects like:

[{id: '123', name: 'John', someKey:'1234'}, {id: '123', name: 'John', someKey:'12345'}]

this is only a basic example, the data is much more complicated so _.isEqual doesn't work.

what do I do with the comparator? I wanna compare the id if they are equal.

_.uniqWith(myArray, function(something) {return something})

Upvotes: 5

Views: 21397

Answers (1)

Ori Drori
Ori Drori

Reputation: 191976

Compare the ids in the _.uniqWith() comparator function or use _.uniqBy():

var myArray = [{
  id: '123',
  name: 'John',
  someKey: '1234'
}, {
  id: '123',
  name: 'John',
  someKey: '12345'
}]

var result = _.uniqWith(myArray, function(arrVal, othVal) {
  return arrVal.id === othVal.id;
});

console.log(result);

/** using uniqBy **/

var result = _.uniqBy(myArray, 'id');

console.log(result);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.16.6/lodash.min.js"></script>

Upvotes: 26

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