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                <div class="app">
	<button class="reset btn btn-dark">RESET</button>
	<div class="container p-4 ">
		<div class="row">
			<div class="col-12  mt-5">
				<div class="bg-danger text-light fs-5 p-4 text-center">
					<p>This demo simulates retriving data from an API.</p>
					<p>The button click will request data from an API and display it. This takes about 500 milliseconds</p>
					<p>First click the button, let the display update.Then try clciking the button again, Each time wait for the preview to update.</p>
					<p>Now try clicking the button as rapidly as possible, and notice how our requests pile up and the preview is updated accordingly.</p>
					<p>Also keep track of how the two counts (button click and preview update) are same.</p>
			<div class=" mt-3 fs-5 col-auto mx-auto">
				<button class="fetch-button btn btn-primary">
					<span class="p-2 ">Click Me</span>
					<span class="p-2 border-start">0</span>
			<div class=" mt-4 col-12">
				<h3 class="text-center">Data Preview updated <span id="preview-update-count">0</span> times</h3>
				<div class="data-preview  p-4 text-center fs-2 bg-dark text-light rounded-pill">



                .app {
	min-height: 100vh;
	position: relative;
.reset {
	position: fixed;
	left: 10px;
	top: 10px;



                const DELAY = 500;
const resetButton = document.querySelector(".reset");

const fetchButton = document.querySelector(".fetch-button");

const count = document.querySelector("button>span:last-child");
const dataPreview = document.querySelector(".data-preview");
const previewUpdateCount = document.querySelector("#preview-update-count");
fetchButton.addEventListener("click", async () => {

function incrementButtonClickCount() {
	count.innerText = +count.innerText + 1;

async function updatePreview() {
	const data = await fetchData();
	dataPreview.innerText = data;
	previewUpdateCount.innerText = +previewUpdateCount.innerText + 1;

function fetchData() {
	return new Promise((resolve, reject) => {
		setTimeout(() => {
			resolve(`Random rumber fetched from api ${Math.round(Math.random() * 100)}`);
		}, DELAY);

resetButton.addEventListener("click", () => {
	count.innerText = 0;
	dataPreview.innerText = "";
	previewUpdateCount.innerText = 0;