Verify if component is null with a if statement

Questions & Answers
1

How would I make my script detect if a component exists and if it doesn’t do something. for example: if (enemy.GetComponent = null). I would want to implement that in the attack function. if the enemy component doesn’t exist, damage the Houn_health. I would like to do that so I don’t get a error saying that the component is null.

This is my code:

    public class Playercombat : MonoBehaviour
    {
        public Animator animator;
        public Transform attackPoint;
        public float attackRange = 0.5f;
        public LayerMask enemyLayers;
        public int attackDamage = 40;
        void start()
        {
        
            
        }
        // Update is called once per frame
        void Update()
        {
            if (Input.GetKeyDown(KeyCode.E))
            {
                Attack();
            }
    
                
        }
        
        
        
        void Attack()
        {
            animator.SetTrigger("Attack");
    
         Collider2D[]hitEnemies = Physics2D.OverlapCircleAll(attackPoint.position, attackRange, enemyLayers);
    
          foreach(Collider2D enemy in hitEnemies)
            {
                
                enemy.GetComponent<enemy>().TakeDamage(attackDamage);
                enemy.GetComponent<Houn_health>().TakeDamage(attackDamage);

                
    
            }
        }
    void OnDrawGizmosSelected()
        {
            if (attackPoint == null)
                return;
            Gizmos.DrawWireSphere(attackPoint.position, attackRange);
        }
    }
2

var enemyScript = enemy.GetComponent();
var healthScript = enemy.GetComponent<Houn_health>();

if (enemyScript == null && healthScript != null)
{
     healthScript.TakeDamage(attackDamage);
}
else if (healthScript == null && enemyScript != null)
{
     enemyScript.TakeDamage(attackDamage);
}

// -_-