What is the recover function in Go?

The recover function in Go is used to catch a panic.

• recover() returns nil if no panic occurs or if it was not called inside a deferred function.
• If a panic is invoked, and recover() is called inside a deferred function, recover() intercepts the value passed to panic and stops the propagation of the panic.
• Without recover, a panic interrupts the normal execution of the program.

Example of usage:

package main

import "fmt"

func main() {
	defer func() { // Deferred function where recover is used
		if r := recover(); r != nil {
			fmt.Println("Recovered from panic:", r)
		}
	}()

	fmt.Println("Program starts")
	panic("Something went wrong!") // Trigger a panic
	fmt.Println("This code will not be executed")
}