Time for Action – executing code in the Console

We're going to do some basic JavaScript coding via the Firebug console; specifically, just calling a built in alert() function to display an alert.

1. Open up Firefox. It doesn't matter at this point what website (if any) that you go to, since we will be writing a stand alone code.

2. Open up Firebug by clicking on the Firebug icon. Go to the Console panel. If it is not enabled, enable it.

3. Now, at the bottom of your screen you'll see an area where you can enter code, designated by >>>. Clicking anywhere after that will allow you to enter the code.

4. Type in the following code, and then hit Enter.

   alert('Narwhals like bacon');

5. You should see an alert box pop up with the text Narhwals like bacon (or whatever string you passed into the alert function). After the code is executed, it will appear in the log above the input line.

   

What Just Happened?

We just executed some JavaScript code without having to edit and save any files. Although we did a simple...