Assign Keys when converting array to json - Node JS [duplicate]

Question

I Have some array like below:

[
  [
    'James',
     23,
     'male'
  ],
  [
     'Britney',
     45,
     'female'
  ]
]

I would like to turn that into a json looking like:

[
{
    'name': 'James',
     'age': 23,
     'gender'': 'male'
},
{
    'name': 'Britney',
     'age': 45,
     'gender'': 'female'
}
]

I understand the json stringify part to convert the array to json but not sure how to create the keys for the values in an efficient way. Any help is greatly appreciated.

You can use the method suggested in this answer: arr.map(([name, age, gender]) => ({name, age, gender})); — Nick Parsons
– Nick Parsons, Commented Sep 5, 2020 at 15:42

Adam Azad · Accepted Answer · 2020-09-05 15:41:26Z

1

Use map, then destruct the array and return an object.

const arr = [
  [
    'James',
    23,
    'male'
  ],
  [
    'Britney',
    45,
    'female'
  ]
]

const res = arr.map(([name, age, gender]) => ({
    name,
    age,
    gender
}))

console.log(res);

answered Sep 5, 2020 at 15:41

Adam Azad

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1 Comment

user3148364 Over a year ago

Perfect thanks that did it!! Appreciate the help.

Rajneesh · Accepted Answer · 2020-09-05 15:42:30Z

0

You can do this with map with proper destructuring(for shortcut):

var a=[ [ 'James', 23, 'male' ], [ 'Britney',45,'female']];

var result = a.map(([name,age,gender])=>({name, age, gender}));

console.log(result);

answered Sep 5, 2020 at 15:42

Rajneesh

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