array of objects to object

1const names = ['Alex', 'Bob', 'Johny', 'Atta'];
2
3// convert array to th object
4const obj = Object.assign({}, names);
5
6// print object
7console.log(obj);
8
9// {0: "Alex", 1: "Bob", 2: "Johny", 3: "Atta"}
10

1const toObject = (arr, key) => arr.reduce((a, b) => ({ ...a, [b[key]]: b }), {});
2
3// Example
4toObject(
5    [
6        { id: '1', name: 'June', gender: 'Female' },
7        { id: '2', name: 'Alex', gender: 'Male' },
8        { id: '3', name: 'Harry', gender: 'Male' },
9    ],
10    'id'
11);
12/* 
13{
14    '1': { id: '1', name: 'June', gender: 'Female' },
15    '2': { id: '2', name: 'Alex', gender: 'Male' },
16    '3': { id: '3', name: 'Harry', gender: 'Male' },
17}
18*/

1const array =    [ [ 'cardType', 'iDEBIT' ],
2      [ 'txnAmount', '17.64' ],
3      [ 'txnId', '20181' ],
4      [ 'txnType', 'Purchase' ],
5      [ 'txnDate', '2015/08/13 21:50:04' ],
6      [ 'respCode', '0' ],
7      [ 'isoCode', '0' ],
8      [ 'authCode', '' ],
9      [ 'acquirerInvoice', '0' ],
10      [ 'message', '' ],
11      [ 'isComplete', 'true' ],
12      [ 'isTimeout', 'false' ] ];
13      
14const obj = Object.fromEntries(array);
15console.log(obj);

1function arrayToObject(arr) {
2    var obj = {};
3    for (var i = 0; i < arr.length; ++i){
4        obj[i] = arr[i];
5    }
6    return obj;
7}
8var colors=["red","blue","green"];
9var colorsObj=arrayToObject(colors);//{0: "red", 1: "blue", 2: "green"}