function en javascript code example

Example 1: declarar una funcion javascript

function square(number) {
  return number * number;
}

Example 2: javascript function

function myFunction() {
  alert("Hello World!");
}
myFunction();

Example 3: javascript function

var x = myFunction(10, 10);     // Function is called, return value will end up in x

function myFunction(a, b) {
    return a * b;             // Function returns the product of a and b
}