How to delete a key-value pair from a map in Go?

To delete a key-value pair from a map in Go, you can use the delete() function. Here's an example:

package main

import "fmt"

func main() {
    m := map[string]int{
        "apple":  5,
        "banana": 10,
        "orange": 15,
    }

    fmt.Println("Before deletion:", m)

    delete(m, "banana")

    fmt.Println("After deletion:", m)
}

In this example, we have a map m with three key-value pairs. We want to delete the key-value pair with the key "banana". We achieve this by calling the delete() function and passing the map (m) and the key ("banana") as arguments.

Output:

Before deletion: map[apple:5 banana:10 orange:15]
After deletion: map[apple:5 orange:15]

The key-value pair with the key "banana" is deleted from the map.