This site is mobile accessible. Press the "Tap Here" button to use a smaller font-size. Tap Here!

Smartphone icons created by Freepik - Flaticon

JavaScript Arrays

The reduce() Method

Find the sum of all numbers in an array:

const numbers = [45, 4, 9, 16, 25];
let sum = numbers.reduce(myFunction);

document.getElementById("demo").innerHTML = "The sum is " + sum;

function myFunction(total, value) {
  return total + value;
}