functions

Contents

Roadmap info from roadmap website

Functions

Discover how functions work in Go, the list of resources below will cover :

• How to define and call functions in Go?

• Named returns in Go?

• Handle multiple return types.

• Different types of functions in Go.

• @article@Go by Example: Functions

• @article@Functions in go

• @official@Effective Go: Functions

Naming Rules for Go Functions

• A function name must start with a letter
• A function name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
• Function names are case-sensitive
• A function name cannot contain spaces
• If the function name consists of multiple words, techniques introduced for multi-word variable naming can be used

Functions Best Practices

• Keep functions small: Each function should focus on a single task.
• Use descriptive names: Choose names that clearly convey the function’s purpose.
• Limit parameters: Use structs to group related parameters.
• Document clearly: Use comments to describe what each function does.
• Handle errors: Return errors and handle them appropriately.
• Avoid side effects: Functions should be predictable and not alter external state.
• Prefer explicitness: Make behavior clear and explicit.
• Return early: Simplify control flow by returning early.