How to have score when an object is destroyed

I’m sorry but i’m new to unity and not very good with javascript. I just want to add score when an object is clicked and destroyed.This is all i have.

function OnMouseDown () {

Destroy(gameObject);

}

Any help is appreciated.

If you will have only one score variable for the whole game, declare it as static like this:

static var score: int;

function OnMouseDown () {
  Destroy(gameObject);}
  score++; // increment score
}

Supposing that this script is called BubbleScript.js, for instance, you can access the static variable score in any other script as BubbleScript.score. If you have a GUIText that shows the current score, its script could be like this:

private var lastScore: int; // used to detect when the score changes

function Update(){
  // only change the GUIText string when the score has changed
  // this avoids unnecessary memory allocation, improving performance
  if (BubbleScript.score != lastScore){ // if score changed...
    guiText.text = "Score: " + BubbleScript.score; // update GUIText...
    lastScore = BubbleScript.score; // and lastScore
  }
}

NOTE: Be aware that static variables are created only once when the game starts and survive to level changes, thus score won’t be reset when changing to other levels - you must explicitly assign zero to it when you want to clear it.