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

Tap Here!

Smartphone icons created by Freepik - Flaticon

JS Functions

Default Parameter Values

If y is not passed or undefined, then y = 10:

function myFunction(x, y = 10) {
  return x + y;
}
document.getElementById("demo").innerHTML = myFunction(5);