What is the main purpose of using the panic mechanism in programming?

The panic mechanism in Go is used for handling critical errors, where the program cannot continue normal execution.

The main goal is to immediately stop the current goroutine and start the recovery process (if provided) or terminate the program.

A panic is usually triggered by unforeseen errors, such as array out-of-bounds, initialization errors, or other fatal situations.

Recovery from a panic is handled using the recover function inside deferred functions (defer), which allows controlling the program's behavior during critical errors.

Example:

func mayPanic() {
    defer func() {
        if r := recover(); r != nil {
            fmt.Println("Recovery after panic:", r)
        }
    }()
    panic("something went wrong")
}