Go
A simple, statically-typed language built for concurrent network services.
CurrentintermediateFull course available
Overview
Go (Golang) was designed at Google for simplicity, fast compilation, and built-in concurrency (goroutines and channels), making it a common choice for cloud infrastructure, CLIs, and networked backend services. Its standard library and tooling are unusually complete out of the box.
- What it is
- A statically-typed, compiled language with a small feature set and built-in concurrency primitives.
- Why it's used
- For fast compilation, simple deployment (a single static binary), and straightforward concurrent programming.
- Where it fits
- A common choice for backend services and infrastructure tooling; many cloud-native tools (Docker, Kubernetes) are themselves written in Go.
Core concepts
- Goroutines and channels
- Structs and interfaces
- Error handling (explicit, not exceptions)
- Packages and modules
Example
Go has no exceptions for ordinary error handling -- functions typically return an explicit error value the caller must check, a deliberate design choice for predictability.
func greet(name string) string {
return "Hello, " + name + "!"
}
func main() {
fmt.Println(greet("world"))
}Common use cases
- Cloud infrastructure and networked services
- Command-line tools
- Concurrent backend systems
Project ideas
- A concurrent web scraper using goroutines and channels