Time for Action – creating object literals

We're going to introduce object literals and get acclimated with how to manipulate them now, so we can better work with OpenLayers code.

1. Open up Firefox and Firebug's Console panel (enabling it if it disabled)—again, it doesn't matter right now what page you're on.

2. Click on the red arrow on the bottom right, above the Firebug icon. This will open up a side panel where we can type in multiple lines of code. The code will not be executed when we press Enter, like in single line mode. Instead, we can execute the code by either pressing Ctrl + Enter or clicking Run.

3. Type in the following code, and then execute it by pressing Ctrl+Enter or clicking Run.

   var my_parameters = {'answer': 42, 'question': null};
   console.log(my_parameters);

4. The above code should display, in the console log area, something similar to Object { answer=42 }. Click on it, and the DOM panel will open, showing you all the information about the object you just created.

5. Click on the Console...