What is an AOT compilation? What are its advantages?

The Ahead-of-time (AOT) compiler converts the Angular HTML and TypeScript code into JavaScript code during the build phase, i.e., before the browser downloads and runs the code.

Some of its advantages are as follows. 

1. Faster rendering
2. Fewer asynchronous requests
3. Smaller Angular framework download size
4. Quick detection of template errors
5. Better security