By Chandermani Arora
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To run the server, we just navigate to the folder where the app code resides, or open the folder from where we want to serve static files. Then type this: live-server And that's it! We have an HTTP server running at http://localhost:8080. It can serve files from the current directory. Note The live-server module does support some startup configurations. com/tapio/live-server. Depending on the platform we are on, we can also try Python's SimpleHTTPServer module, Mongoose, or any such web server.
That event triggers the change detection cycle, which identifies that the noOfTries property that is being used in the view has changed. As a result, Angular updates the element in the view that is bound to noOfTries with the new value of that property. As you can see, this is a multistep process where Angular first updates the components and domain objects in response to an event, then runs change detection, and finally rerenders elements in the view that have changed. And, it does this on every browser event (as well as other asynchronous events, such as XHR requests and timers).
If you use the debugger tool in your browser to walk through the application, you will see how change detection works. Here, we are using Chrome's developer tools and setting a watch for the noOfTries property. If you place a breakpoint at the end of the verifyGuess() method, you will see that when you enter a guess, the noOfTries property is first updated as soon as you hit the breakpoint, like this: Once you move past the breakpoint, the display on the screen updates with the correct number of guesses, as seen in the following screenshot: What is really going on under the hood is that Angular is reacting to events in the application and using change detectors, which go through every component to determine whether anything has changed that affects the view.
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