How to convert object into array with lodash

Question

I have below object

{
    "holdings": [
        {
            "label": "International",
            "value": 6
        },
        {
            "label": "Federal",
            "value": 4
        },
        {
            "label": "Provincial",
            "value": 7
        }
    ]
}

I want to convert it into below object with lodash

{
    "holdings": [
        [
            "International",
            6
        ],
        [
            "Federal",
            4
        ],
        [
            "Provincial",
            7
        ],
        [
            "Corporate",
            7
        ]
    ]
}

is there any way to change it. Please suggest.

holdings.map(function(l){return Object.keys(l).map(function(v){return l[v]})}) — webduvet
– webduvet, Commented Jul 22, 2015 at 11:19

thefourtheye · Accepted Answer · 2015-07-22 16:36:13Z

2

If you want to use only lodash, then you can do it with _.mapValues and _.values to get the result, like this

console.log(_.mapValues(data, _.partial(_.map, _, _.values)));
// { holdings: [ [ 'International', 6 ], [ 'Federal', 4 ], [ 'Provincial', 7 ] ] }

The same can be written without the partial function, like this

console.log(_.mapValues(data, function(currentArray) {
    return _.map(currentArray, _.values)
}));
// { holdings: [ [ 'International', 6 ], [ 'Federal', 4 ], [ 'Provincial', 7 ] ] }

edited Jul 22, 2015 at 16:36

answered Jul 22, 2015 at 11:09

thefourtheye

241k53 gold badges466 silver badges505 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Amit · Accepted Answer · 2015-07-22 11:30:11Z

This works recursively (So has to be called on the holdings property if you want to keep that) and "understands" nested objects and nested arrays. (vanilla JS):

var source = {
    "holdings": [
        {
            "label": "International",
            "value": 6
        },
        {
            "label": "Federal",
            "value": 4
        },
        {
            "label": "Provincial",
            "value": 7
        }
    ]
}

function ObjToArray(obj) {
  var arr = obj instanceof Array;

  return (arr ? obj : Object.keys(obj)).map(function(i) {
    var val = arr ? i : obj[i];
    if(typeof val === 'object')
      return ObjToArray(val);
    else
      return val;
  });
}

alert(JSON.stringify(ObjToArray(source.holdings, ' ')));

Collectives™ on Stack Overflow

How to convert object into array with lodash

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related