Functions in Go: Building Blocks of Your Programs

Functions are the fundamental building blocks of Go programs. They encapsulate a specific task or behavior, making your code modular, reusable, and easier to understand.

Basic Function Syntax

Go

func functionName(parameters) returnType {
    // Function body
    return value
}

func: Keyword to declare a function.

functionName: The name of the function.

parameters: A comma-separated list of parameters, each with a type.

returnType: The type of value the function returns. If the function doesn't return a value, the returnType is omitted.

function body: The code that executes when the function is called.