w3schools javascript function code example

Example 1: simple javascript function

function idk() {
	alert('This is an alert!')
}
//call the function to make the function run by saying "Name of function + ()"
idk()

Example 2: js function

function name(parameter1, parameter2, parameter3) {
// what the function does
}

Example 3: javascript function

// variable:
var num1;
var num2;
// function:
function newFunction(num1, num2){
	return num1 * num2;
}

Example 4: declare function javascript

function myFunction(var1, var2) {
  return var1 * var2;
}