# Ark Bytecode Overview

The ARK bytecode file is a binary product generated after ArkTS/TS/JS compilation. This section describes each part of the ARK bytecode file to help you understand the content of the bytecode file and analyze and modify the bytecode.

- ARK bytecode file format: describes the structure information of each part in the bytecode file, and the storage mode and dependency of each structure.

- Basic principles of Ark bytecode: describes the important concepts, formats, and meanings of instructions in bytecode, helping developers understand Ark bytecode instructions and develop instruction-related features.

- Ark bytecode function naming rules: describes the naming rules of function names in bytecode files.

- Customizing Ark Bytecode During Compilation: describes how to modify the content of a bytecode file.