function syntax javascript' code example

Example 1: function javascript

var x = myFunction(4, 3);     // 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
}

Example 2: javascript function

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

Example 3: how to write a function javascript

// 3 ways you see it
function name(argument){ 
 return argument + 2
  //return something here
}
name(4) // equals 6

let name = function(arg){ return arg + 2}
name(4) //this equals 6, here we are calling our name function

//es6 style 

let name = (arg) => {return arg+ 2}
name(4) //equals 6