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Dynamically accessing and updating user interface elements is an important part of most modern web applications.
Event-based design patterns are very common in modern applications, especially in the development of user interfaces.
HTML5 is now supported in all modern browsers, making it important for front-end developers to know how to use its features.
Dialog box, a small window that pops-up, is a common way for communicating information to the user and prompting them for a response.
Calling methods asynchronously is a common task for programmers.
Getting and setting HTML attributes is one of the most common coding tasks of that changes something on a web page.
Adding or modifying content is the most common task when developing dynamic web pages.
Forms provide a method of grouping inputs and collecting user data. As such, they are important for all front end developers.
Selectors are a programming pattern that can be used to select an element from a container. They are primarily used in technologies such as CSS and jQuery to apply styles to groups of elements.
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