In this final chapter, we have seen how the functionality that is provided by the jQuery core need not limit the library’s capabilities. Plug-ins that are readily available extend the menu of features substantially, and we can easily create our own that push the boundaries further.

We have examined the Dimensions plug-in, for measuring and manipulating sizes of elements. The Form plug-in is useful for interacting with HTML forms. We have also studied the Interface plug-in, for enabling a variety of user-interface widgets.

We have also learned how to create plug-ins with various features, including global functions that use the jQuery library, new methods of the jQuery object for acting on DOM elements, enhanced selector expressions for finding DOM elements in new ways, and easing functions that alter the rates of animations.

With these tools at our disposal, we can shape jQuery—and our own JavaScript code—into whatever form we desire.