I want to convert array to object

Question

What is the best way to convert:

from

['firstName','lastName','gender']

to

0: {title: "firstName"}
1: {title: "lastName"}
2: {title: "gender"}

in JavaScript

Answer 1

You can use .map() to get the desired output:

const data = ['firstName','lastName','gender'];

const result = data.map(name => ({ title: name }));

console.log(result);

Answer 2

Try this code.I hope it will helps you.

var arr = ['firstName','lastName','gender']

var jsonObj = {};
for (var i = 0 ; i < arr.length; i++) {
    jsonObj['title' +(i+1) ] = arr[i];
}
console.log(jsonObj)

Answer 3

You can simply use forEach() loop which is the easiest way:

var arr = ['firstName','lastName','gender'];

let res = [];
arr.forEach((item) => res.push({title: item}));
console.log(res);

Just to build your knowledge in Array operations you can also use reduce():

var arr = ['firstName','lastName','gender'];

let res = arr.reduce((acc, item) => {
  acc.push({title: item});
  return acc;
}, []);
console.log(res);