How can we custom sort JavaScript object keys?

Question

I am trying to custom sort a JavaScript object but not able to get how we can do this in a right way. Say I am having an object like

var test = {
  \'yellow\         


        

Answer 1

You could use Map()

A Map object iterates its elements in insertion order

var arr = ['red', 'green', 'blue', 'yellow'];

var map = new Map();

arr.forEach(function(val, index) {
  var obj = {};
  obj[val] = [];
  map.set(index, obj)
});

console.log(map)