Go (Golang) Tutorial

A language built for simplicity and scale Go (often called Golang) is an open-source, statically-typed, compiled language created at Google. It was designed to make building fast, ...

Install and run Your first program Every executable Go program lives in package main and starts at func main() . Imports bring in packages like fmt from the standard library. ...

Structs group data Go has no classes. Instead you compose data into a struct : Methods You attach behaviour by declaring a function with a receiver – the type it belongs to: Use a ...

Errors are values Go has no try/catch. A function that can fail returns an error as its last value; nil means success. You check it right where it happens: This if err != nil ...

Goroutines A goroutine is a function running concurrently, started by putting go before a call. Goroutines are extremely lightweight – you can run thousands – because the Go ...

Packages Every Go file belongs to a package. Code is shared across packages by exporting identifiers – a name that starts with a capital letter is public; lowercase is private to ...