How to find the child tag unity code example

Example 1: find child of gameobject unity

gameObject.transform.Find("ChildGameObject").gameObject;

//This insures that you are finding the child instead of finding another
//GameObject's Child.

Example 2: unity get child

GameObject Child;
Child = transform.GetChild(0).gameObject;

Example 3: unity get child gameobject

//Instantiate Prefab
GameObject originalGameObject  = Instantiate(prefab);

//To find `child1` which is the first index(0)
GameObject child2 = originalGameObject.transform.GetChild(0).gameObject;

//To find `child2` which is the second index(1)
GameObject child2 = originalGameObject.transform.GetChild(1).gameObject;

//To find `child3` which is the third index(2)
GameObject child3 = originalGameObject.transform.GetChild(2).gameObject;

Example 4: unity find gameobject with tag in child

public static class TransformExtensions     {         public static List<GameObject> FindObjectsWithTag(this Transform parent, string tag)         {             List<GameObject> taggedGameObjects = new List<GameObject>();              for (int i = 0; i < parent.childCount; i++)             {                 Transform child = parent.GetChild(i);                 if (child.tag == tag)                 {                     taggedGameObjects.Add(child.gameObject);                 }                 if (child.childCount > 0)                 {                     taggedGameObjects.AddRange(FindObjectsWithTag(child, tag));                 }             }             return taggedGameObjects;         }     }