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13.2. People Lists

People list components can be very basic—a simple one can show the username of everyone connected to an application instance and nothing more. As each user connects, his name appears in the list, and as each leaves, it disappears. You can add features from there. People lists normally show the connection status of each person, such as online or away from the keyboard. You may want to show other information, such as whether each person has audio or video resources. In an online course system, you may want to know if someone is waiting to ask a question. People lists often aggregate and display information from other components or from multiple shared objects to present a summary of information about each user. Of all the component types, people lists are ones you may find yourself building and rebuilding. Throughout this chapter, we'll build three people lists. After reading it, you may not have to build so many!


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