How to Use Yaegi as a Go Interpreter for Scripting

Yaegi is a standalone Go interpreter that executes Go source code without compiling it to a binary, allowing you to run scripts directly. Install it via go install github.com/traefik/yaegi/cmd/yaegi@latest and run your script with yaegi script.go.

go install github.com/traefik/yaegi/cmd/yaegi@latest
yaegi script.go

Alternatively, embed it in your application by importing "github.com/traefik/yaegi/interp" and calling interp.New() to create an interpreter instance, then use i.Eval() to execute code strings.

Yaegi lets you run Go code instantly without the usual wait time for compilation. Think of it like running a Python script instead of building a C++ program. You use it when you need to test code snippets quickly or build tools that let users write custom logic in Go.