How to deactivate all children in Unity?

Question

How do I only deactivate all children in unity and leaving the parent active?

Answer 1

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

Answer 2

//Assuming parent is the parent game object
for (int i = 0; i < parent.transform.childCount; i++)
{
    var child = parent.transform.GetChild(i).gameObject;
    if (child != null)
        child.SetActive(false);
}