In JavaScript, we have functions and wehave arguments that we pass into those functions. But how JavaScript handleswhat you’re passing in is not always clear. When you start getting intoobject-oriented development, you may find yourself perplexed over why you haveaccess to values sometimes but not other times.When passing in a primitive type variablelike a string or a number, the value is passed in by value. This means that anychanges to that variable while in the function are completely separate fromanything that happens outside the function. Let’s take a look at the followingex...