Use of parameters in js?

Question

What is the use of parameters and how do they work?

Answer 1

think of them as input for a function so you could have a function that takes in two numbers (as parameters) and returns the average. the syntax would look like:

function avg(var x, var y)
{ return x + y / 2; }

//to call avg:
var Foo = avg(10, 20);