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Basics

Go Running Code

Running Go Programs

Go programs run via go run or go build with .go files.

Running Go Programs with go run

The simplest way to run a Go program is by using the go run command. This command compiles and executes the source code files directly. It's particularly useful for quick tests or running small scripts without creating a binary executable.

Building Executables with go build

For deploying applications, or if you need better performance, use the go build command to compile your Go programs into executable binaries. This allows you to run the compiled program without needing to use the Go tooling again.

Understanding the Difference

  • go run: Compiles and runs the Go program directly from the source file. Ideal for testing and development.
  • go build: Compiles the source code into an executable. Suitable for production deployment as it generates a standalone binary.

Common Use Cases for go run and go build

The choice between go run and go build often depends on the development and deployment stage:

  • Use go run during development for testing small scripts and functions.
  • Use go build when you need to distribute your application as a binary, ensuring it can run independently of the Go environment.

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