JSFiddle - React, Tailwind, and code Playground

by Vinay Pratap Singh Bhadauria

HTML

<p id="slot">10</p>
<a href="javascript:reduceSlot(1)" id="button1">Deduct</a>
<button onclick="window.localStorage.clear();">Clear All</button>

JavaScript

var slot = localStorage.getItem("slot");

    if (slot == null) {
        slot = 10;
    }

    document.getElementById("slot").innerText = slot;

    function reduceSlot() {
        if (slot >= 1) {
            slot--;
            document.getElementById("slot").innerHTML = slot;
            localStorage.setItem("slot", slot);
            alert(slot)
        }
        else {
            document.getElementById('slot').innerText = "FULL";
            document.getElementById("button1").style.display = "none";
        }
    }

    document.getElementById("button1").onclick = reduceSlot;

    function clearLocalStorage(){
        localStorage.clear();
    }
window.onload = function(){
    var slots = localStorage.getItem('slot');
    alert(slot);
    
    }