Unity - Scripting API: GameObject.FindGameObjectsWithTag

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Declaration

public static GameObject[] FindGameObjectsWithTag(string tag);

Parameters

Parameter	Description
tag	The name of the tag to search for `GameObjects` by.

Description

Retrieves an array of all active GameObjects tagged with the specified tag. Returns an empty array if no GameObjects have the tag.

Tags must be declared in the tag manager before using them. A UnityException will be thrown if the tag does not exist or if an empty string or null is supplied as the tag parameter.

// Instantiates respawnPrefab at the location
// of all GameObjects tagged "Respawn".using UnityEngine;
using System.Collections;
public class ExampleClass : MonoBehaviour
{
    public GameObject respawnPrefab;
    public GameObject[] respawns;
    void Start()
    {
        if (respawns == null)
            respawns = GameObject.FindGameObjectsWithTag("Respawn");
        foreach (GameObject respawn in respawns)
        {
            Instantiate(respawnPrefab, respawn.transform.position, respawn.transform.rotation);
        }
    }
}

Another example:

Another example, testing for empty array: