What is the difference between an Argument and a Parameter?

Hey Bob:

A parameter is a property that you explicitly set/pass into a function. In the code below the name variable is a parameter of the function.

function sayName(name) {console.log("Hi" + name)}; 

In Javascript, the Arguments parameter is one that is passed into every function, and can be accessed kind of like an array (it is technically not an array iirc, a bit confusing but it is what it is). So with the above function if you called it like this:

sayName("Andrew", "Kiernan")

The value "Kiernan" would be accessible as arguments[1] (your own parameters take the first however many spaces of the arguments "array").

I hope that helps, and I assume this is what the video covered (haven't watched it in a while). It could be they were used interchangeably, but in practice if someone uses the Arguments variable, this is what they are referring to.

Let me know if you have any questions!

-Andrew