> For the complete documentation index, see [llms.txt](https://godoc.beko.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://godoc.beko.dev/introduction.md).

# Introduction

## Table of Contents

* [Packages](/packages.md)
* [Understanding Go Modules & Building Go Programs](/understanding-go-modules-and-building-go-programs.md)
* [Variables & Constants](/variables-and-constants.md)
* [Data Types & Null Values](/data-types-and-null-values.md)
* [Control Structures](/control-structures.md)
* [Functions](/functions.md)
* [Pointers](/pointers.md)
* [Structs and Methods](/structs-and-methods.md)
* [Arrays and Slices](/arrays-and-slices.md)
* [Maps](/maps.md)
* [Handling Long User Input](/handling-long-user-input.md)
* [Loading Environment Variables](/loading-environment-variables.md)
* [Databases MYSQL](/databases-mysql.md)
* [fmt](/fmt.md)
  * [fmt.Printf()](/fmt/fmt.printf.md)
  * [fmt.Sprintf()](/fmt/fmt.sprintf.md)
  * [fmt.Scan()](/fmt/fmt.scan.md)
* [os](/os.md)
  * [os.WriteFile()](/os/os.writefile.md)
  * [os.ReadFile()](/os/os.readfile.md)