MonoBehaviour.OnDestroy

function OnDestroy () : void

Description

This function is called when the MonoBehaviour will be destroyed.

OnDestroy will only be called on game objects that have previously been active.

JavaScript

function OnDestroy () {
    print("Script was destroyed");
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    void OnDestroy() {
        print("Script was destroyed");
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def OnDestroy():
        print('Script was destroyed')

OnDestroy cannot be a co-routine.