Prevent script from running in-game: only in the editor

[Ilya]

I have a editor script and I want it to run only while in the editor. It's not supposed to run while playing the game.

How can I prevent this?

I've added the following to the beginning of my script:

@script ExecuteInEditMode()

However Update is still being called inside the game.

[system]

You could preface the code in Update() with an ifcheck for Application.isEditor, or if you don't even want it to happen when it's playing in the editor, use Application.isPlaying.

[yoyo]

Checking for Application.isEditor works well. If you want the code to go away entirely in your final build you can (in C#, sorry not javascript) get the compiler to remove it, like so:

#if UNITY_EDITOR
void Update()
{
   ...
}
#endif

See the Unity docs for more info on conditional compilation.