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Yet another one of the really cool aspects of jQuery is the fact that most of the methods returns a jQuery object that you can then use to call another method. This allows you to do command chaining, where you can perform multiple methods on the same set of elements, which is really neat because it saves you and the browser from having to find the same elements more than once. Here's an example, and don't worry about the jQuery methods used in the following examples - they will be explained in later chapters:
It works like this: We instantiate a new jQuery object and select the divTest1 element with the $ character, which is a shortcut for the jQuery class. In return, we get a jQuery object, allowing us to manipulate the selected element. We use that object to call the text() method, which sets the text of the selected element(s). This method returns the jQuery object again, allowing us to use another method call directly on the return value, which is the css() method.
Note that some methods doesn't return the jQuery object, while others only return it depending on the parameters you pass to it. A good example of that is the text() method used above. If no parameters are passed to it, the current text of the selected element(s) is returned instead of a jQuery object, while a single parameter causes jQuery to set the specified text and return a jQuery object.