- Parsing: The JavaScript engine reads and analyzes the source code in the .js file, converting it into an Abstract Syntax Tree (AST) for further processing.
- Scope Object: A Scope Object (SO) is created to manage variable access and scoping during the execution of JavaScript code.
- Memory Management: The JavaScript engine uses call, memory, stack, and heap components to manage memory allocation, deallocation, and data storage during runtime.
- Interpreter: The interpreter executes the machine code generated by the JavaScript engine, converting the code into actions and operations.
- Profiler: The profiler monitors the execution of JavaScript code and collects performance data to help the engine optimize the code.
- Compiler: The compiler converts the JavaScript code into an optimized format for faster execution. This process can include JIT (Just-In-Time) compilation.
- Optimized code: The optimized code is the final output of the JavaScript engine after the compilation process, providing a more efficient and faster version of the original JavaScript code.
- Machine code: The JavaScript engine converts the JavaScript code into low-level machine code, executable by the computer's CPU.
