Time for Action – accessing layer objects in Firebug

Let's take a look at how to access an object in Firebug now.

Click on one of the items in the array of objects that was outputted from the previous Time for Action section. You should see something like this:

What Just Happened?

We just accessed our map's wms_layer_map layer object. What you see in the DOM panel is a listing of all the properties and functions that layer object contains. The DOM panel is one way we can access a layer object's properties. The DOM panel is a great way to get a quick look at all the properties and values of any object we wish to know more about. You'll notice some of the properties have not yet been mentioned; this is because some properties are specific to the Layer.WMS class, and is not included in the base Layer class.

Accessing layer properties

There are two common ways to access a layer object's properties.

map.layers

The first way is by accessing the layer object through the map.layers array, which we did...