Array to Object Converter

array-to-object-converter.js

var arr = ["a", "b", "c"];

var obj = {};

/* Method no: 1 */

arr.forEach(function(item, index) {
  obj[index] = item;
});

console.log('Object is: ', obj);

/* Method no: 2 */
// Create a function where conversion of array to object is taking place.

function converter(arr) {
  var newObj = {};
  for(var i = 0; i < arr.length; i++) {
    newObj[i] = arr[i];
  }
  return newObj;
}

console.log('New Object is: ', converter(arr));

/* Method no: 3 */
// Object.assign(): copy the values of all enumerable own properties from  
// one or more source objects to a target object.
console.log('Fastest Object created is: ', Object.assign({}, arr));

/* Method no: 4 */
Array.prototype.toObject = function(key) {
  var latestObj = {}; // creating an empty object
  var temp = this;
  if(key.length == temp.length) {
    var count = temp.length - 1;
    while(count >= 0) {
      latestObj[key[count]] = temp[count];
      count--;
    }
  }
  return latestObj;
}

console.log('Object is: ', arr.toObject([1,2,3]));

arr.reduce((obj, element, index) => {
  obj[index] = element;
  return obj;
}, {});

Hey thanks @ppseprus, I'll surely add this method in my list.