Just-in-Time (JIT), compiles your app in the browser at runtime. Ahead-of-Time (AOT), compiles your app at build time on the server. JIT compilation is the default when you run the ng build (build only) or ng serve (build and serve locally) CLI commands. This is for development.
Read moreWhat is AOT and JIT in Flutter?
AOT-compiled code is guaranteed to have fast startup and consistent runtime performance, with no latency during early runs. JIT-compiled code is slower at startup, but it can have better peak performance after it runs long enough for runtime optimizations to be applied.7 Nis 2020
Read moreWhat is AOT mode?
The Angular ahead-of-time (AOT) compiler converts your Angular HTML and TypeScript code into efficient JavaScript code during the build phase before the browser downloads and runs that code . Compiling your application during the build process provides a faster rendering in the browser.
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