CODEWITHSUNDEEP
javascriptlodash
Trung Tran
Trung Tran

Reputation: 13721

How to generate new array of objects from existing array of objects using lodash

Can someone help me generate a new array of objects from an existing one using lodash? I've been trying a combination of _.zipObject and map but to no avail... basically, I have an array of objects like:

const names = [
  {
    first_name: 'nedd',
    given_name: 'cersei'
  },
  {
    first_name: 'tyrion',
    given_name: 'tywin'
  }
]

However, I want it to look like:

[
  {
    name: 'nedd'
  },
  {
    name: 'cersei'
  },
  {
    name: 'tyrion'
  },
  {
    name: 'tywin'
  },
]

I have tried various iterations of:

const newArray = _.zipObject( names, _.fill( Array(names.length), {name: ['first_name' || 'given_name']} ) );

But without any luck... can someone help?

Thanks in advance!

Upvotes: 1

Views: 805

Answers (2)

Saravana
Saravana

Reputation: 40584

Use _.flatMap combined with _.map:

_.flatMap(names, (nameObj) => _.map(nameObj, (objVal) => { return { name: objVal }; }));

Upvotes: 2

pgreen2
pgreen2

Reputation: 3651

This might work: 

_.flatMap(names, (n)=> [{name: n.first_name}, {name: n.given_name}]);

Upvotes: 2

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