how to make enemy attack unity code example

Example 1: how to make enemy attack unity

private void OnCollisionEnter(Collision collision)
    {
        if(collision.gameObject.tag == "Enemy")
        {
            Destroy(gameObject);
        }

Example 2: how to make enemy attack unity

private void OnCollisionEnter(Collision collision)
    {
        if(collision.gameObject.tag == "Enemy")
        {
            Destroy(gameObject);
        }