Go

wikipedia:Go (programming language) (Nov 2009)

• Concurrent
• Memory management: Garbage collection

Installation

• macOS: brew install go
• Ubuntu: apt install golang-go (aprox 500MB)

• Ubuntu VM on Apple M:

wget https://go.dev/dl/go1.20.3.linux-arm64.tar.gz
 rm -rf /usr/local/go && tar -C /usr/local -xzf go1.20.3.linux-arm64.tar.gz && export PATH=$PATH:/usr/local/go/bin &&  go version

Commands

• go help
• go build, which builds Go binaries using only information in the source files themselves, no separate makefiles
• go install
• go test, for unit testing and microbenchmarks
• go fmt, for formatting code
• go get, for retrieving and installing remote packages
• go vet, a static analyzer looking for potential errors in code
• go run, a shortcut for building and executing code
• godoc, for displaying documentation or serving it via HTTP
• gorename, for renaming variables, functions, and so on in a type-safe way
• go generate, a standard way to invoke code generators
• go mod init
• go list
• go tool
  • go tool pprof

Examples

• Go: Hello world! example
• for (Go lang)

Activities

• Read go FAQs: https://go.dev/doc/faq#goroutines

Projects

• Kubernetes (2014)
• GVisor (2018)
• Grafana (2014)

Errors

• panic: runtime error: invalid memory address or nil pointer dereference

Related

• Class Inheritance: embedding and interfaces (duck typing)
• net/http
• channels
• https://pkg.go.dev/std
• defer
• $HOME/go/bin/
• Concurrency vs parallelism

See also

• https://en.wikipedia.org/wiki/Go_(programming_language)#Version_history
• go tool, pprof
• Go, Gorutine: go [ mod | list | fmt, for | build | get | version | env | install | test ] go help, Go template, Echo go web framework, Go packages, Blank identifier