CSHARP

unity delete all children

 foreach (Transform child in transform) {
     Destroy(child.gameObject);
 }

c# unity destroy all child gameobject

public GameObject objParent;

// Destory every child game object
for (int i = objParent.transform.childCount - 1; i >= 0; i--)
{
    Object.Destroy(objParent.transform.GetChild(i).gameObject);
}

deactivate all children unity

foreach (Transform child in transform)
    child.gameObject.SetActive(false);

unity destroy all children

while (transform.childCount > 0) {
    DestroyImmediate(transform.GetChild(0).gameObject);
}

Unity Children Destroy

 //put in any gameobject having children and enter playmode
        while (transform.childCount > 0)
        {
            DestroyImmediate(transform.GetChild(0).gameObject);
        }

Unity Destroy All Children

void Update()
    {
    //put in any gameobject having children and enter playmode
        foreach (Transform child in transform)
        {
            Destroy(child.gameObject);
        }
    }