sort an array in descending order javascript code example

Example 1: javascript ascending and descending

// ascending and discending for number
const arr1 = [21, 2100, 2, 35000];
const arr2 = [21, 2100, 2, 35000];

let ascN = arr1.sort((f, s) => f - s);
let dscN = arr2.sort((f, s) => s - f);

// ascending and discending for string
const arr3 = ['21', '2100', '2', '35000'];
const arr4 = ['21', '2100', '2', '35000'];

let ascS = arr3.sort((f, s) => f.length - s.length);
let dscS = arr4.sort((f, s) => s.length - f.length);

Example 2: javascript sort by id

elems.sort((a, b) => a.id - b.id);

Example 3: javascript sort array in ascending order

//sorts arrays of numbers
function myFunction() {
  points.sort(function(a, b){return a-b});
  document.getElementById("demo").innerHTML = points;
}

Example 4: javascript sort descending

function sortEggsInNest(a, b) {
  return a > b ? -1 : b > a ? 1 : 0;
}