Can you explain the principle of JIT compilation and how it differs from traditional compilation methods?

JIT compilation (Just-In-Time) is a method of executing programs where source code or bytecode is compiled into machine code directly during program execution, rather than beforehand. This combines the advantages of interpreted code (flexibility, portability) and compiled code (high performance).

Differences from traditional compilation:

• Traditional compilation (Ahead-Of-Time, AOT) occurs before the program runs, creating an executable file.
• JIT compiler compiles parts of the code "on the fly" during execution, allowing optimization based on actual data and conditions.

For example, in Flutter, JIT is used during development for quick build and debugging, while AOT is used in release mode for maximum performance.