difference between GameObject.FindGameObjectWithTag(Tag tag) and GameObject.FindWithTag(Tag tag)

Questions & Answers
1

i’ve been wondering what the difference between these 2 is. I’ve seen them both appear and they seem to do exactly the same. The best explaination i could come up with is that the code got rewritten and they didn’t remove the old function. Also there is no information whatsoever on GameObject.FindGameObjectWithTag(Tag tag) in the referece manual.

4

I ran a performance test, 1000 cubes, one of them had the “Player” tag and ran the following code.

public class FindPerformanceTask : MonoBehaviour {

	// Use this for initialization
	void RunTest () {
		System.Diagnostics.Stopwatch stopWatch = new System.Diagnostics.Stopwatch();
		stopWatch.Start();
		for (int i = 0; i < 1000000; i++) {
			GameObject player = GameObject.FindGameObjectWithTag("Player");
		}
		stopWatch.Stop();

		Debug.Log(stopWatch.ElapsedMilliseconds.ToString()+"ms");
	}
	void Update()
	{
		if(Input.GetKeyDown(KeyCode.Space)){
			RunTest();
		}
	}
	

}

The Science is in! Both perform the same.

2

they both do exactly the same thing.

3

GameObject.FindGameObjectsWithTag

Finds a list of objects.

The other finds only one and returns it.