Javascript - loop thro array and sort the objects based on the key value inside [duplicate]

Question

I have a simple array which i get via json where each object has a position key with a certain value. I would like to reorder them (change their index) based on the value of that key inside.

Here is what i have so far: JSFiddle

The code:

var mess = [
    a = {
    lorem: "ipsum",
    position: 3
  },
  b = {
    lorem: "ipsum",
    position: 2
  },
  c = {
    lorem: "ipsum",
    position: 4
  },
  d = {
    lorem: "ipsum",
    position: 1
  }
]

var order = [];

for (i = 0; i < mess.length; i++) {
    order.splice(mess[i].position - 1, 0, mess[i]);
}

The issue with the current loop is that only the first and last object get arranged properly (1, 4) within order array.

Answer 1

You can use Array.prototype.sort method:

let mess = [
	{lorem: "ipsum",position: 3},
	{lorem: "ipsum",position: 2},
	{lorem: "ipsum",position: 4},
	{lorem: "ipsum",position: 1}
];

// 
console.log(mess.sort((a, b) => a.position - b.position))