Wait for seconds inside for loop between function execution

I am trying to add a 2 sec wait after the destroy:

1. foreach (GameObject g in gemList1)
2. {
3. Destroy(g);
4. //want to add a time delay of 2 secs here
6. }

Invoke cant work because I have a parameter. Also IEnumerator seems to be prefixed before the function. Thanks for your ideas.

 

IEnumerator seems to be prefixed before the function? Like you read this elsewhere?

You're looking for a Coroutine : calls an IEnumerator function and can yield for seconds, amongst other things.

Code (csharp):

1.  
2. IEnumerator GemDestroy() {
3.    WaitForSeconds wfs = new WaitForSeconds(2);
4.    for(int i = 0; i < gemList.Count; ++i) // this presumes gemList is type 'List', must be '.Length' if it's an array.
5.       Destroy(gemList[i]);
6.       yield return wfs;
7.    }
8. }
9.  

And call it like this:

Code (csharp):

1.  StartCoroutine(GemDestroy());

Check this out for more depth, if you're interested:
https://unity3d.com/learn/tutorials/topics/scripting/coroutines?playlist=17117