javascript sort object defaults code example

Example 1: javascript sort object by key

function sortObjectByKeys(o) {
    return Object.keys(o).sort().reduce((r, k) => (r[k] = o[k], r), {});
}
var unsorted = {"c":"crane","b":"boy","a":"ant"};
var sorted=sortObjectByKeys(unsorted); //{a: "ant", b: "boy", c: "crane"}

Example 2: sort js array array

var ages = [18, 21, 9, 41, 35, 24]
ages.sort(function(a, b) {
  return a - b
})
// => [9, 18, 21, 24, 35, 41]