How to stop attack animation midway.

In my 2d game I have my enemies attack once the player is in attack range. However, when the player goes out of attack range, the damage is still dealt. I have the damage calculations tied with the attack animations of the enemy so the player is only dealt damage at a specific point of the attack animation. How can I stop the attack animation once the player is out of attack range during the animation?

Here is my code for the enemy attacks:

 private int damageAmount;
 private int attackNum = 1; //attack index
 private Animator anim;
 private bool inAttackRange;
 private bool isNear;
 private float timeBtwAttack;
 private float currentDistance;

 [SerializeField] private float distance = 2f;
 [SerializeField] private float startTimeBtwAttack;
 [SerializeField] private Transform attackPos;
 [SerializeField] private LayerMask whoIsPlayer;
 [SerializeField] private float attackRangeX, attackRangeY;
 [SerializeField] private int attack1, attack2, attack3;
 [SerializeField] private GameObject player;
 private EnemyPatrol patrol;
 private bool isAttacking = false;

 private void Awake()
 {
     anim = GetComponent<Animator>();
     patrol = GetComponent<EnemyPatrol>();
     timeBtwAttack = startTimeBtwAttack;

 }

 private void Update()
 {
     //is player in attack range
     inAttackRange = Physics2D.OverlapBox(attackPos.position, new Vector2(attackRangeX, attackRangeY), 0, whoIsPlayer);

     currentDistance = Mathf.Abs(transform.position.x - player.transform.position.x);

     //check if distance from player is near
     if(currentDistance > distance)
     {
         isNear = false;
     } else
     {
         isNear = true;
     }

     if (timeBtwAttack <= 0)
     {

         if (inAttackRange && isNear)
         {
             patrol.enabled = false;
             anim.Play("attack" + attackNum);
             timeBtwAttack = startTimeBtwAttack;
         }
         else
         {
             patrol.enabled = true;
         }
     }
     else
     {
         timeBtwAttack -= Time.deltaTime;
     }
     
 }

 private void DealDamage()
 {
     
     PlayerHealth.instance.TakeDamage(damageAmount);
     attackNum++;
     if (attackNum == 1)
     {
         damageAmount = attack1;
     }
     else if (attackNum == 2)
     {
         damageAmount = attack2;
     }
     else if (attackNum == 3)
     {
         damageAmount = attack3;
     }
     else if (attackNum > 3)
     {
         attackNum = 1;
     }
 }