How do I count or get references to all gameobjects that are tagged with a particular tag?

the Title say it all.

How do I find out how many objects have a certain tag, or get references to all gameobjects that are tagged with that particular tag?

Use the "FindGameObjectsWithTag" function. Here's a c# example:

// to count the number of objects:
int enemyCount = GameObject.FindGameObjectsWithTag("Enemy").Length;

// to get an array of references to all those objects:
GameObject[] enemies = GameObject.FindGameObjectsWithTag("Enemy");

and in Javascript:

// to count the number of objects:
var enemyCount : int = GameObject.FindGameObjectsWithTag("Enemy").Length;

// to get an array of references to all those objects:
var enemies : GameObject[] = GameObject.FindGameObjectsWithTag("Enemy");

in c # try this code to find out the references of all objects specific name

obsticals = GameObject.FindGameObjectsWithTag(“hurdles”);

    if (obsticals != null)
    {

        foreach (GameObject roadHurdles in obsticals)
        {

         hurdleScripts hurdle = roadHurdles.GetComponent<hurdleScripts>();

hurdle.variable in the next scripts…= somthing;

    //    }

    //}