Setting default parameter values

Until now, all the functions that we've worked with had parameters or didn't. What if we wanted to use a function where we have the option to send information to it - but not always? In other words, wouldn't it be nice to have default values to the parameters we sent into our functions. That's the main topic of this lecture. Warning: this is a relatively new feature in JavaScript and not all browsers have incorporated it. As such, if you're running in any other browser besides Firefox, this won't work. Note: Stay Tuned. We'll explain how to make it work in non-supported browsers shortly.