Go by Example Go is an open source programming language designed for building scalable, secure and reliable software. Please read the official documentation to learn more.
Go by Example is a hands-on introduction to Go using annotated example programs. Check out the first example or browse the full list below.
Unless stated otherwise, examples here assume the latest major release Go and may use new language features. Try to upgrade to the latest version if something isn't working.
Hello World Values Variables Constants For If/Else Switch Arrays Slices Maps Functions Multiple Return Values Variadic Functions Closures Recursion Range over Built-in Types Pointers Strings and Runes Structs Methods Interfaces Enums Struct Embedding Generics Range over Iterators Errors Custom Errors Goroutines Channels Channel Buffering Channel Synchronization Channel Directions Select Timeouts Non-Blocking Channel Operations Closing Channels Range over Channels Timers Tickers Worker Pools WaitGroups Rate Limiting Atomic Counters Mutexes Stateful Goroutines Sorting Sorting by Functions Panic Defer Recover String Functions String Formatting Text Templates Regular Expressions JSON XML Time Epoch Time Formatting / Parsing Random Numbers Number Parsing URL Parsing SHA256 Hashes Base64 Encoding Reading Files Writing Files Line Filters File Paths Directories Temporary Files and Directories Embed Directive Testing and Benchmarking Command-Line Arguments Command-Line Flags Command-Line Subcommands Environment Variables Logging HTTP Client HTTP Server Context Spawning Processes Exec'ing Processes Signals Exit by Mark McGranaghan and Eli Bendersky | source | license