Display none at the end of animation - javascript

I'm trying to make element dissapear at the end of animation but it doesn't work, can someone explain how to make exit animation with element dissappearing at the end of it?:
var test = document.getElementById("test");
test.addEventListener("click", displayOpacity);
function displayOpacity(event){
event.target.style.animation = "changeOpacity 1s linear";
if(event.target.style.opacity === 0){
event.target.style.display = "none";
}
}
.container .test {
text-align: center;
padding: 100px;
color: #fff;
background-color: #00f;
max-width: 500px;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
}
#-webkit-keyframes changeOpacity {
0% {
opacity: 1;
}
100% {
opacity: 0;
}
}
#keyframes changeOpacity {
0% {
opacity: 1;
}
100% {
opacity: 0;
}
}
<body>
<div class="container">
<div class="test" id="test">Custom Text</div>
</div>
<script src="main.js"></script>
</body>

Since you have tagged jQuery, wouldn't be it easier to do it with .fadeOut()? The display attribute of the element is being set to none just after the animation has ended.
$('#test').click(function(){
$(this).fadeOut();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id='test'>Text</div>

Your issue is because the animation-fill-mode is not being respected as you're overwriting it by setting the animation rule directly on the element itself.
To fix this change your JS code to add a class on the element, and put the animation rule in there, along with the required fill mode:
var test = document.getElementById("test");
test.addEventListener("click", displayOpacity);
function displayOpacity(event) {
this.classList.add('changeOpacity');
}
.container .test {
text-align: center;
padding: 100px;
color: #fff;
background-color: #00f;
max-width: 500px;
}
.changeOpacity {
animation: changeOpacity 1s linear forwards;
}
#-webkit-keyframes changeOpacity {
0% { opacity: 1; }
100% { opacity: 0; }
}
#-webkit-keyframes changeOpacity {
0% { opacity: 1; }
100% { opacity: 0; }
}
#keyframes changeOpacity {
0% { opacity: 1; }
100% { opacity: 0; }
}
<div class="container">
<div id="test" class="test">
Test
</div>
</div>

The animation time is 1 second
event.target.style.animation = "changeOpacity 1s linear";
so just make a timeout
setTimeout(function(){
event.target.style.display = "none";
},1000)

Related

Why does the drawer not animate on the way out?

I want my drawer to animate on the way in, and on the way out and when the animation ends, to turn to display: none but when the drawer is closed, it disappears and doesn't animate out.
const Drawer = ({ closeDrawer, isDrawerOpen }) => {
const [isAnimating, setIsAnimating] = useState()
let drawerClassName
if (isDrawerOpen) {
drawerClassName = "drawer-in"
} else if (!isDrawerOpen && isAnimating) {
drawerClassName = "drawer-animating"
} else if (!isDrawerOpen && !isAnimating) {
drawerClassName = "drawer-out"
}
return (
<>
<div
className={`drawer ${drawerClassName}`}
onAnimationStart={() => setIsAnimating(true)}
onAnimationEnd={() => setIsAnimating(false)}
></div>
<div onClick={closeDrawer}></div>
</>
)
}
CSS:
.drawer {
height: 100%;
width: 60%;
background-color: #fff;
position: absolute;
right: 0;
top: 0;
opacity: 1;
z-index: 3;
transform: translateX(100%);
}
.drawer-in {
animation: 0.7s drawerIn;
transform: translateX(0);
display: block;
}
.drawer-animating {
animation: 0.7s drawerOut;
display: block;
}
.drawer-out {
animation: 0.7s drawerOut;
display: none;
}
#keyframes drawerIn {
0% {
transform: translateX(100%);
}
1% {
transform: translateX(100%);
}
100% {
transform: translateX(0);
}
}
#keyframes drawerOut {
0% {
transform: translateX(0);
}
99% {
transform: translateX(100%);
}
100% {
transform: translateX(100%);
}
}
it's because when you set the drawer-out class to the element display: none; is activated immediately and you don't see the animation.
One solution is to run a setTimeout function within your JavaScript to wait for the animation to finish, then change the elements display property to none. This will allow your 'closing animation' to complete before removing the element. See my snippet below for working example.
Basically what's happening in my example snippet is I'm triggering the closing animation by adding a class associated with the animation. Then I'm setting a time out function that waits for the animation to complete (set time out in milliseconds to match your animation time within your CSS). Once the timeout is complete, the animation class is removed and the element's data attribute is set to closed which will trigger the display none. Hope this helps.
const menu = document.querySelector('.menu');
const menuToggle = document.querySelector('.menu_toggle');
menuToggle.checked=false
menuToggle.addEventListener('change',(e)=>{
menuToggle.disabled=true
let menuState = menu.dataset.menuState
if(menuState==='closed'){
menu.dataset.menuState='opened'
setTimeout(() => {
menuToggle.disabled=false
}, 500);
}else{
menu.classList.add('animate_close')
setTimeout(() => {
menu.classList.remove('animate_close')
menu.dataset.menuState='closed'
menuToggle.disabled=false
}, 500);
}
})
body {
background-color: rgb(235, 235, 235);
}
.menu {
background-color: black;
color: white;
width: fit-content;
}
.menu {
transition: all .5s ease-in-out;
}
.menu[data-menu-state="closed"] {
background-color: red;
display: none;
}
.menu[data-menu-state="opened"] {
animation: openMenu .5s ease-in-out;
transform: translateX(100%);
background-color: green;
}
.menu.animate_close{
background-color: rgb(0, 30, 128);
animation: closeMenu .5s ease-in-out;
opacity: 0;
}
#keyframes openMenu {
0% {
transform: translateX(0);
}
100% {
transform: translateX(100%);
}
}
#keyframes closeMenu {
0% {
transform: translateX(100%);
}
100% {
transform: translateX(0);
}
}
<body>
<label for="menu_toggle">Menu Toggle</label>
<input id="menu_toggle" type="checkbox" class="menu_toggle">
<div class="menu_container">
<div class="menu" data-menu-state="closed">
<ul>
<li>Item1</li>
<li>Item2</li>
<li>Item3</li>
</ul>
</div>
</div>
<script src="main.js"></script>
</body>

The animation only works with the first click of the button

I want to create simple text animation. When i click a button, text shifts from fully transparent to fully visible and reverts to transparent. I wrote code that does the animation but only once. The animation doesn't work anymore every time when i click the button:
function animation() {
$("span").removeClass("opacity-effect");
$("span").addClass("opacity-effect");
}
span{
opacity: 0;
}
.opacity-effect {
animation-name: animate-opacity-effect;
animation-duration: 1400ms;
animation-fill-mode: forwards;
opacity: 0;
}
#keyframes animate-opacity-effect {
0% {
opacity: 0;
}
50% {
opacity: 1;
}
100% {
opacity: 0;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span>Hello World!</span>
<button onClick="animation()">
Start animation
</button>
The animation does not repeat, because for animation to start CSS requires a frame when there was no class.
So, to solve this, you should delay adding class to the next frame
function animation() {
$("span").removeClass("opacity-effect");
requestAnimationFrame(()=>{
$("span").addClass("opacity-effect");
});
}
You need to reset the animation. There is a good and correct way to do this, using event animationend. In this event, you need to put the removal of the class opacity-effect.
function animation() {
$("span").addClass("opacity-effect");
$("span").on("animationend", function() {
$(this).removeClass("opacity-effect");
});
}
span {
opacity: 0;
}
.opacity-effect {
animation-name: animate-opacity-effect;
animation-duration: 1400ms;
animation-fill-mode: forwards;
opacity: 0;
}
#keyframes animate-opacity-effect {
0% {
opacity: 0;
}
50% {
opacity: 1;
}
100% {
opacity: 0;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span>Hello World!</span>
<button onClick="animation()">
Start animation
</button>
You need to add a small delay between the removeClass and the addClass. This can be done in two ways:
With a setTimeout
function animation() {
$("span").removeClass("opacity-effect")
setTimeout(() => {
$("span").addClass("opacity-effect");
}, 0);
}
span{
opacity: 0;
}
.opacity-effect {
animation-name: animate-opacity-effect;
animation-duration: 1400ms;
animation-fill-mode: forwards;
}
#keyframes animate-opacity-effect {
0% {
opacity: 0;
}
50% {
opacity: 1;
}
100% {
opacity: 0;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span>Hello World!</span>
<button onClick="animation()">
Start animation
</button>
With a cloning
function animation() {
const newEl = $("span").removeClass("opacity-effect").clone(true);
$("span").before(newEl);
$("span:last").remove();
newEl.addClass("opacity-effect");
}
span{
opacity: 0;
}
.opacity-effect {
animation-name: animate-opacity-effect;
animation-duration: 1400ms;
animation-fill-mode: forwards;
}
#keyframes animate-opacity-effect {
0% {
opacity: 0;
}
50% {
opacity: 1;
}
100% {
opacity: 0;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span>Hello World!</span>
<button onClick="animation()">
Start animation
</button>
$('span').addClass('opacity-effect');
setTimeout(function(){
$('span').removeClass('opacity-effect');
}, 1400);
Try this
1400 is your animation duration time
<!DOCTYPE html>
<html lang="en">
<head>
<title>Dropdown value from database</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<style>
span{
opacity: 0;
}
.opacity-effect {
opacity: 0;
-webkit-animation: animate-opacity-effect 1400ms infinite;
-moz-animation: animate-opacity-effect 1400ms infinite;
-o-animation: animate-opacity-effect 1400ms infinite;
animation: animate-opacity-effect 1400ms infinite;
}
#keyframes animate-opacity-effect {
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
#-o-keyframes animate-opacity-effect {
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
#-moz-keyframes animate-opacity-effect {
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
#-webkit-keyframes animate-opacity-effect {
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
</style>
</head>
<body>
<span>Hello World!</span>
<button onClick="animation()">
Start animation
</button>
<script>
function animation() {
$("span").removeClass("opacity-effect");
$("span").addClass("opacity-effect");
}
</script>
</body>
</html>

How do I trigger a CSS keyframe animation by pressing a key on the keyboard? [duplicate]

Naturally, we can create a CSS animation using keyframes, and control it from there.
However, ideally, I would like to trigger this animation from a button click - so the button click would be an event...
#keyframes fade-in {
0% {opacity: 0;}
100% {opacity: 1;}
}
Now, on click, I want to trigger this animation; as opposed to from within the CSS animation property.
see here jsfiddle
if you want your animation to work every time you press the button use this code :
$('button').click(function() {
$(".fademe").addClass('animated');
setTimeout(function() {
$(".fademe").removeClass('animated');
}, 1500);
});
where 1500 is the animation-duration in this case, 1.5s
$('button').click(function() {
$(".fademe").addClass('animated');
setTimeout(function() {
$(".fademe").removeClass('animated');
}, 1500);
});
.fademe {
width: 100px;
height: 100px;
background: red;
}
.fademe.animated {
animation: fade-in 1.5s ease;
}
#keyframes fade-in {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="fademe">
</div>
<button>CLICK ME</button>
EXPLANATION :
on click on the button add class animated ( or any other class ) to the element you want to apply the animation to , .fademe
make a setTimeout(function() to delay the removeClass for the duration of the animation 1.5s or 1500ms
write in CSS the declaration of the animation , #keyframes, and add it to the element with the class added by the JQ .fademe.animated
$("#move-button").on("click", function(){
$("#ship").removeClass("moving");
$("#ship")[0].offsetWidth = $("#ship")[0].offsetWidth;
$("#ship").addClass("moving");
});//
#ship
{
background: green;
color: #fff;
height: 60px;
line-height: 60px;
text-align: center;
width: 100px;
}
#move-button
{
margin-top: 20px;
}
#ship.moving
{
animation: moving 2s ease;
}
#keyframes moving
{
0%{ transform: translate(0px);}
50%{ transform: translate(20px);}
100%{ transform: translate(0px);}
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="ship">Ship</div>
<button id="move-button">Push</button>
If you want to make the animation happen and always end before allowing the event listener to trigger it again, I would suggest to control the behaviour like this:
// Add this to your event listener
if (!element.classList.contains("myClass")) {
element.className = "myClass";
setTimeout(function() {
element.classList.remove("myClass");
}, 1000); //At least the time the animation lasts
}
There is a toggle method that works just fine for this, hope it helps:
function Fade() {
document.getElementById("box").classList.toggle("animate");
}
#box {
background-color: black;
height: 50px;
width: 50px;
}
.animate {
animation: fademe 0.5s;
}
#keyframes fademe {
from {
opacity: 1;
}
to {
opacity: 0;
}
}
<html>
<head>
<title>
Animation Trigger
</title>
</head>
<body>
<div id="box"></div>
<button onclick="Fade()"> Fade above Box</button>
</body>

How to fire "animationend" event, when I can't set a CSS animation?

If I set the css animation to "element", it's fine. If the Css animation is not available, how does it function fire like a zero seconds animation in the ES5?
function run() { ... }
element.addEventListener('animationend', run);
Reply for
#Anurag Srivastava,
Am I wrong idea or do I have the following code wrong? Either way, the return value is "".
var el1 = document.getElementById("notAnimation");
console.log(el1.style.animation);
var el2 = document.getElementById("onAnimation");
console.log(el2.style.animation);
div {
padding: 10px;
margin: 20px;
}
#notAnimation {}
#onAnimation {
animation: scale 10s ease-in-out;
}
#keyframes scale {
0% {
transform: scale(1);
opacity: 1;
color: black;
}
50% {
transform: scale(0.95);
opacity: .4;
color: red;
}
100% {
transform: scale(1);
opacity: 1;
color: black;
}
}
<div id="notAnimation">
Not Animation
</div>
<div id="onAnimation">
Animation
</div>
You can check if element.style.WebkitAnimation and element.style.animation contain any value and execute run() if the value is ""
Edit Turns out that .style will return "" for any value. What you need is window.getComputedStyle() along with the property animationName. If it is none, there is no animation, else there is. Check the code below:
var el1 = document.getElementById("notAnimation");
console.log(window.getComputedStyle(el1)["animationName"])
var el2 = document.getElementById("onAnimation");
console.log(window.getComputedStyle(el2)["animationName"])
div {
padding: 10px;
margin: 20px;
}
#notAnimation {}
#onAnimation {
animation: scale 10s ease-in-out;
}
#keyframes scale {
0% {
transform: scale(1);
opacity: 1;
color: black;
}
50% {
transform: scale(0.95);
opacity: .4;
color: red;
}
100% {
transform: scale(1);
opacity: 1;
color: black;
}
}
<div id="notAnimation">
Not Animation
</div>
<div id="onAnimation">
Animation
</div>

setTimeout to JS function inside another one

I'm looking to add setTimeout to a JS function but inside this function I have another one, I'm aware that I can use onclick=setTimeout"(fooBar(), 2500);" but there's a loader inside my function, so to make it clear, I'd like to execute the function instantly (show loader div) when the button is clicked but setTimout to 2500 ms before running $.getJSON. Let's say I want to add a fake timeOut to the api request because that stuff is blazing fast.
Also, please let me know if my loading animation method with JS is ok, actually I think it's too much lines of code to show/hide div. I'm sure there's a better way to handle something like this. Thanks.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>JS Loader</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
</head>
<body>
<style type="text/css" id="style">
#myloader {
position: relative;
left: 50%;
top: 50%;
z-index: 1;
width: 150px;
height: 150px;
margin: 25% -50;
border: 16px solid #000;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
#-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(360deg); }
}
#keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
/* Add animation to "page content" */
.animate-bottom {
position: relative;
-webkit-animation-name: animatebottom;
-webkit-animation-duration: 1s;
animation-name: animatebottom;
animation-duration: 1s
}
#-webkit-keyframes animatebottom {
from { bottom:-100px; opacity:0 }
to { bottom:0px; opacity:1 }
}
#keyframes animatebottom {
from{ bottom:-100px; opacity:0 }
to{ bottom:0; opacity:1 }
}
#myDiv {
display: none;
text-align: center;
}
</style>
<div class="container container-table">
<div class="row vertical-center-row">
<div class="col-md-4 col-md-offset-4">
<h1 id="name" >Real-time Bitcoin Price</h1>
<div id="myloader"style="display: none;"></div>
<p id="cointime"></p>
<div id="dollar"></div>
<div id="gbp"></div>
<div id="euro"></div><br>
<button id="refreshBtn" class="btn btn-primary">Load Data</button>
</div>
</div>
</div>
<script type="text/javascript">
document.getElementById("refreshBtn").addEventListener("click", function () {
var x = document.getElementById('myloader');
if (x.style.display === 'none') {
x.style.display = 'block';
} else {
x.style.display = 'none';
}
$.getJSON("https://api.coindesk.com/v1/bpi/currentprice.json", function (data) {
var x = document.getElementById('myloader');
if (x.style.display === 'none') {
x.style.display = 'block';
} else {
x.style.display = 'none';
}
$("#cointime").text(data.time.updated);
$("#dollar").text("USD : " + ' ' + data.bpi.USD.rate);
$("#gbp").text("GBP : " + ' ' + data.bpi.GBP.rate);
$("#euro").text("EUR :" + ' ' + data.bpi.EUR.rate);
})
});
</script>
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
</body>
</html>
To delay the AJAX request simply wrap the $.getJSON call in a setTimeout(). Also note that you're using an odd mix of jQuery and native JS functions. I'd suggest using one or the other, something like this:
$("#refreshBtn").on("click", function() {
$('#myloader').show();
setTimeout(function() {
$.getJSON("https://api.coindesk.com/v1/bpi/currentprice.json", function(data) {
$('#myloader').hide()
$("#cointime").text(data.time.updated);
$("#dollar").text("USD : " + ' ' + data.bpi.USD.rate);
$("#gbp").text("GBP : " + ' ' + data.bpi.GBP.rate);
$("#euro").text("EUR :" + ' ' + data.bpi.EUR.rate);
})
}, 2500);
});
#myloader {
position: relative;
left: 50%;
top: 50%;
z-index: 1;
width: 150px;
height: 150px;
margin: 25% -50;
border: 16px solid #000;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
#-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
}
}
#keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
/* Add animation to "page content" */
.animate-bottom {
position: relative;
-webkit-animation-name: animatebottom;
-webkit-animation-duration: 1s;
animation-name: animatebottom;
animation-duration: 1s
}
#-webkit-keyframes animatebottom {
from {
bottom: -100px;
opacity: 0
}
to {
bottom: 0px;
opacity: 1
}
}
#keyframes animatebottom {
from {
bottom: -100px;
opacity: 0
}
to {
bottom: 0;
opacity: 1
}
}
#myDiv {
display: none;
text-align: center;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<div class="container container-table">
<div class="row vertical-center-row">
<div class="col-md-4 col-md-offset-4">
<h1 id="name">Real-time Bitcoin Price</h1>
<div id="myloader" style="display: none;"></div>
<p id="cointime"></p>
<div id="dollar"></div>
<div id="gbp"></div>
<div id="euro"></div><br>
<button id="refreshBtn" class="btn btn-primary">Load Data</button>
</div>
</div>
</div>
Also I'd suggest that adding a 2.5 second delay is far too much. I'm aware that adding a slight delay to make it more obvious that data has loaded is a good idea for UX, however I'd say that 500ms would be more than enough.
First - objects/elements:
You should always cache elements that you use more than once. Means: Assign an object to a variable that can be accessed everywhere you need it. Why? Because you can use the variable as often as you like. This saves much time and processing power because you don't need to look for an element with a certain id or class again and again. This is in my case the var x.
Second - the loader:
There are easy things like show() and hide() in jQuery, but I used ternary operation. Why? It is extremely flexible and I use it all day since I knew about it. So I want to show you this as a handy option :-).
Third - the timeout:
Pretty straight forward, wrap your function in a setTimeout() and there you go.
Here is a working fiddle:
EDIT: Now you could wrap the x.style.display lines in a separate function and call this so you can reuse the code and don't have to write it twice, but I think for demonstration purpose this should be fine.
var x = document.getElementById('myloader');
document.getElementById("refreshBtn").addEventListener("click", function () {
x.style.display = (x.style.display === 'none') ? 'block' : 'none';
setTimeout(function(){
$.getJSON("https://api.coindesk.com/v1/bpi/currentprice.json", function (data) {
x.style.display = (x.style.display === 'none') ? 'block' : 'none';
$("#cointime").text(data.time.updated);
$("#dollar").text("USD : " + ' ' + data.bpi.USD.rate);
$("#gbp").text("GBP : " + ' ' + data.bpi.GBP.rate);
$("#euro").text("EUR :" + ' ' + data.bpi.EUR.rate);
});
},2500);
});
#myloader {
position: relative;
left: 50%;
top: 50%;
z-index: 1;
width: 150px;
height: 150px;
margin: 25% -50;
border: 16px solid #000;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
#-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(360deg); }
}
#keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
/* Add animation to "page content" */
.animate-bottom {
position: relative;
-webkit-animation-name: animatebottom;
-webkit-animation-duration: 1s;
animation-name: animatebottom;
animation-duration: 1s
}
#-webkit-keyframes animatebottom {
from { bottom:-100px; opacity:0 }
to { bottom:0px; opacity:1 }
}
#keyframes animatebottom {
from{ bottom:-100px; opacity:0 }
to{ bottom:0; opacity:1 }
}
#myDiv {
display: none;
text-align: center;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="container container-table">
<div class="row vertical-center-row">
<div class="col-md-4 col-md-offset-4">
<h1 id="name" >Real-time Bitcoin Price</h1>
<div id="myloader" style="display: none;"></div>
<p id="cointime"></p>
<div id="dollar"></div>
<div id="gbp"></div>
<div id="euro"></div><br>
<button id="refreshBtn" class="btn btn-primary">Load Data</button>
</div>
</div>
</div>
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
var timeout = null
function refresh () {
function load () {
$.getJSON('https://api.coindesk.com/v1/bpi/currentprice.json', function (data) {
$('#cointime').text(data.time.updated)
$('#dollar').text('USD : ' + data.bpi.USD.rate)
$('#gbp').text('GBP : ' + data.bpi.GBP.rate)
$('#euro').text('EUR : ' + data.bpi.EUR.rate)
timeout = null
})
}
if (timeout) {
clearTimeout(timeout)
}
timeout = setTimeout(load, 2500)
}
document.getElementById('refreshBtn').addEventListener('click', refresh)

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