How do I convert array of Objects into one Object in JavaScript?

Question

I have an array of objects:

[ 
  { key : '11', value : '1100', $$hashKey : '00X' },
  { key : '22', value : '2200', $$hashKey : '018' }
];

How do I convert it into the following by JavaScript?

{
  "11": "1100",
  "22": "2200"
}

Answer 1

Tiny ES6 solution can look like:

var arr = [{key:"11", value:"1100"},{key:"22", value:"2200"}];
var object = arr.reduce(
  (obj, item) => Object.assign(obj, { [item.key]: item.value }), {});

console.log(object)