Linting is a bang out of static code analysis for identifying potential codebase errors.

Linters analyze code for syntax errors and style issues.

The process can help prevent bugs, improve readability, enforce best practices, and save time.

The Golang mascot, a blue gopher, climbing a ladder superimposed on a photograph of a laptop.

Linting is a standard practice in software development.

These include the GolangCI Lint, Go Meta Linter, and Staticcheck packages.

you could also check thegolangci-lint installationspage for other available installation methods.

Golangci-lint YAML file usage instruction

The command will install GolangCI on your system as a CLI tool.

Thegolangci-linttool usesYAML files for configuration.

You’ll specify your linters prefs in the YAML file for the package to read.

result from running the help command  on Golangci-lint

you’re free to proceed to edit this file to configure the linter for your project.

You’ll need to edit the file to add the linting rules for your program.

you’re able to find the full list of available linters on thegolangci-lint Lintersdocumentation page.

result from running the linter on a http program

Running the Linter

Here’s a demonstration of linting the following Hello, World!

program that uses thenet/httppackage:

This program defines ahandlerfunction that takes in writer and request instances from thehttppackage’sResponseWriterandRequeststruct types.

Thehandlerfunction writes Hello, World!

to the client on request.

Themainfunction mounts the/route to thehandlerfunction, and theListenAndServefunction starts the server on localhost port8080.

TheListenAndServefunction returns an error, but the program ignores it.

For JavaScript, ESLint is the most popular linter.