CODEWITHSUNDEEP
javascriptlodash
Andre Thonas
Andre Thonas

Reputation: 311

lodash order by array of object is not working

let arr = 
  [{
    "goodreadsId": "1531073",
    "books": {
      "title": "pensée antique",
      "ratings_count": "1"
    }
  },
  {
    "goodreadsId": "1377520",
    "books": {
      "title": "Why",
      "ratings_count": "2"
    }
  }]

I did _.sortBy(arr, 'books.ratings_count') I expect the ratings count of 2 will be sorted at the first but it didn't. I also tried _.sortBy(arr, 'books.ratings_count', 'desc') but it doesn't work, any clue?

Upvotes: 0

Views: 567

Answers (2)

Vanojx1
Vanojx1

Reputation: 5574

let arr = 
  [{
    "goodreadsId": "1531073",
    "books": {
      "title": "pensée antique",
      "ratings_count": "1"
    }
  },
  {
    "goodreadsId": "1377520",
    "books": {
      "title": "Why",
      "ratings_count": "2"
    }
  }]
  
const sorted = _.sortBy(arr, el => -el.books.ratings_count);

console.log(sorted);
<script src="https://cdn.jsdelivr.net/npm/[email protected]/lodash.min.js"></script>

Upvotes: 2

Derek Wang
Derek Wang

Reputation: 10194

It seems you are going to sort array in DESC order by ratings_count.

In this case, you should use _.orderBy function. (_.sortBy function supports sorting on ASCENDING order).

let arr = [{
    "goodreadsId": "1531073",
    "books": {
      "title": "pensée antique",
      "ratings_count": "1"
    }
  },
  {
    "goodreadsId": "1377520",
    "books": {
      "title": "Why",
      "ratings_count": "2"
    }
  }
];

console.log(_.orderBy(arr, "books.ratings_count", ['desc']));
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js"></script>

Upvotes: 2

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