Sort objects by key

sortObjects.js

const list = [
    { key: 7, val: "amazon" },
    { key: 3, val: "msn" },
    { key: 5, val: "github" },
    { key: 1, val: "google" },
    { key: 4, val: "stackoverflow" },
    { key: 6, val: "jsfiddle" },
    { key: 2, val: "yahoo" },
    { key: 8, val: "ebay" }
];

const sorted = list.sort(function(a, b){
	return a["key"] - b["key"];
});

console.log(sorted);