Why are linters needed in code? Which ones have you used?

Linters are used for automatic code style checking, identifying potential errors and quality issues before execution. They help maintain a consistent coding style within the team, prevent bugs, and improve code readability and maintainability.

In Go, common linters include:

• golint — checks code style according to Go recommendations.
• staticcheck — a more advanced tool that detects errors and potential problems.
• go vet — a built-in static analysis tool.

Example of using staticcheck:

staticcheck ./...

It scans the entire project and outputs warnings and errors.