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Exercise

Add an observer to display notifications

Recall that an observer is used for side effects, like displaying a plot, table, or text in the browser. By default an observer triggers an action, whenever one of its underlying dependencies change.

In this exercise, you will use an observer to display a notification in the browser, using observe() and showNotification(). As we are triggering an action using an observer, we do NOT need to use a render***() function or assign the results to an output.

Instructions

100 XP
  • Add an observer in the server to display a notification 'You have entered the name xxxx', where xxxx is the name from the input.