What are the differences between methods and functions in Go?

What are the differences between methods and functions in Go?

In Go, a function is a standalone block of code that can be called by its name, while a method is a function that is associated with a type.

Can you give me an example of a method in Go?

Sure! Here's a simple example:

package main

import "fmt"

type Rectangle struct {
    width, height float64
}

func (r Rectangle) Area() float64 {
    return r.width * r.height
}
}

func main() {
    rect := Rectangle{width: 10, height: 5}
    fmt.Println("Area of rectangle:", rect.Area())
}

What about functions? Can you show me a function example?

Absolutely! Here's a basic function example:

package main

import "fmt"

func Add(a int, b int) int {
    return a + b
}

func main() {
    sum := Add(5, 3)
    fmt.Println("Sum:", sum)
}

Are there any performance differences between using methods and functions?

Generally, there is no significant performance difference. However, methods can be more convenient for working with types and encapsulating behavior.