Generic Selection Menu TMP in Unity

using System.Collections;
using System.Collections.Generic;
using TMPro;
using Unity.VisualScripting;
using UnityEngine;

public class MainMenuNavigation : MonoBehaviour
{
    [SerializeField] private TextMeshProUGUI[] menuText;

    private int totalMenuOptions;
    private int currentIndex = 0;
    private KeyCode selectionUp = KeyCode.UpArrow;
    private KeyCode selectionDown = KeyCode.DownArrow;

    private void Start()
    {
        totalMenuOptions = menuText.Length;
        UpdateSelectedMenuItem(0, 0);
    }

    private void UpdateSelectedMenuItem(int pastSelected, int newSelected)
    {
        TextMeshProUGUI pastSelectedText = menuText[pastSelected];
        TextMeshProUGUI currentSelectedText = menuText[newSelected];

        if (pastSelectedText.text[0] == '>')
        {
            pastSelectedText.text = pastSelectedText.text.Substring(2);
        }

        currentSelectedText.text = "> " + currentSelectedText.text;
    }

    private void Update()
    {
        if (Input.anyKey)
        {
            int previousSelection = currentIndex;

            if (Input.GetKeyDown(selectionUp))
            {
                currentIndex = (currentIndex - 1 < 0) ? totalMenuOptions - 1 :  currentIndex - 1;
            }

            if (Input.GetKeyDown(selectionDown))
            {
                currentIndex = (currentIndex + 1 > totalMenuOptions - 1) ? 0 : currentIndex + 1;
            }

            UpdateSelectedMenuItem(previousSelection, currentIndex);
        }
    }
}