Image src not changing using javascript - javascript

I have written this code for a marquee effect in CSS and now I am using javascript for changing the image but it is not working even though the code is correct.
please let me know what is the issue.
I have tried all the possible code and also rearrangement of the code but it is not working out.
HTML file
<!DOCTYPE html>
<html>
<head>
<title>Marquee Effect</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,
initial-scale=1">
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/b
ootstrap.min.css">
<link rel="stylesheet" type="text/css"
href="main.css">
</head>
<body>
<div class="marquee">
<img src = "2.jpg" class="img-responsive">
</div>
<script type="text/javascript">
function myTimer() {
var divtag = document.getElementByClass("marquee");
divtag.getElementByClass("img-responsive").src =
"3.jpg";
}
var fun = setInterval(myTimer, 12500);
</script>
</body>
</html>
css file
#-webkit-keyframes scroll{
0% {
-webkit-transform: translate(0,-120%);
}
50%{
-webkit-transform: translate(0,50%);
-webkit-transition-delay(1);
}
100% {
-webkit-transform: translate(0,245%);
}
}
.marquee{
width:100%;
height:100%;
overflow: hidden;
}
.marquee img{
float: right;
width:40%;
height:40%;
position: relative;
-webkit-animation:scroll 12s infinite linear;
opacity: 0.7;
}
html, body{
width:100%;
height:100%;
background-color: black;
overflow:hidden;
}
Help me

If you open up the developer tools (F12) in your browser you will see the following error message repeating:
Uncaught TypeError: document.getElementByClass is not a function at myTimer
Simply put, getElementByClass is a non-existent function. There's a getElementsByClassName function on the document object which you could use.
But, I'd recommend using the document.querySelector function which uses the CSS syntax to select the element you want. It returns a single element node. If you need to operate on multiple elements, then use its counterpart, the document.querySelectorAll function, which will return a collection of element nodes.
So here's the code that you can use in your myTimer function:
document.querySelector(".marquee .img-responsive").src="3.jpg"

Related

vanilla tilt js why it doesnt work in browser,but work in stackovervlow snippet?

its my firtst time using vanilla tilt js for 3d animation on my site.But i just followed all tutorial in internet,and has matched each code line of code with the comand and tutorial from vanilla-tilt.js and make sure each tutorial from maker that i tried properly.But it doesnt work in my browser. and this is my code and the result in browser. i also tried on live preview extension on vs code,but hve same result it doesnt work...thanks:)
var VanillaTilt=function(){"use strict";class t{constructor(e,i={}){if(!(e instanceof Node))throw"Can't initialize VanillaTilt because "+e+" is not a Node.";this.width=null,this.height=null,this.clientWidth=null,this.clientHeight=null,this.left=null,this.top=null,this.gammazero=null,this.betazero=null,this.lastgammazero=null,this.lastbetazero=null,this.transitionTimeout=null,this.updateCall=null,this.event=null,this.updateBind=this.update.bind(this),this.resetBind=this.reset.bind(this),this.element=e,this.settings=this.extendSettings(i),this.reverse=this.settings.reverse?-1:1,this.glare=t.isSettingTrue(this.settings.glare),this.glarePrerender=t.isSettingTrue(this.settings["glare-prerender"]),this.fullPageListening=t.isSettingTrue(this.settings["full-page-listening"]),this.gyroscope=t.isSettingTrue(this.settings.gyroscope),this.gyroscopeSamples=this.settings.gyroscopeSamples,this.elementListener=this.getElementListener(),this.glare&&this.prepareGlare(),this.fullPageListening&&this.updateClientSize(),this.addEventListeners(),this.reset(),this.updateInitialPosition()}static isSettingTrue(t){return""===t||!0===t||1===t}getElementListener(){if(this.fullPageListening)return window.document;if("string"==typeof this.settings["mouse-event-element"]){const t=document.querySelector(this.settings["mouse-event-element"]);if(t)return t}return this.settings["mouse-event-element"]instanceof Node?this.settings["mouse-event-element"]:this.element}addEventListeners(){this.onMouseEnterBind=this.onMouseEnter.bind(this),this.onMouseMoveBind=this.onMouseMove.bind(this),this.onMouseLeaveBind=this.onMouseLeave.bind(this),this.onWindowResizeBind=this.onWindowResize.bind(this),this.onDeviceOrientationBind=this.onDeviceOrientation.bind(this),this.elementListener.addEventListener("mouseenter",this.onMouseEnterBind),this.elementListener.addEventListener("mouseleave",this.onMouseLeaveBind),this.elementListener.addEventListener("mousemove",this.onMouseMoveBind),(this.glare||this.fullPageListening)&&window.addEventListener("resize",this.onWindowResizeBind),this.gyroscope&&window.addEventListener("deviceorientation",this.onDeviceOrientationBind)}removeEventListeners(){this.elementListener.removeEventListener("mouseenter",this.onMouseEnterBind),this.elementListener.removeEventListener("mouseleave",this.onMouseLeaveBind),this.elementListener.removeEventListener("mousemove",this.onMouseMoveBind),this.gyroscope&&window.removeEventListener("deviceorientation",this.onDeviceOrientationBind),(this.glare||this.fullPageListening)&&window.removeEventListener("resize",this.onWindowResizeBind)}destroy(){clearTimeout(this.transitionTimeout),null!==this.updateCall&&cancelAnimationFrame(this.updateCall),this.reset(),this.removeEventListeners(),this.element.vanillaTilt=null,delete this.element.vanillaTilt,this.element=null}onDeviceOrientation(t){if(null===t.gamma||null===t.beta)return;this.updateElementPosition(),this.gyroscopeSamples>0&&(this.lastgammazero=this.gammazero,this.lastbetazero=this.betazero,null===this.gammazero?(this.gammazero=t.gamma,this.betazero=t.beta):(this.gammazero=(t.gamma+this.lastgammazero)/2,this.betazero=(t.beta+this.lastbetazero)/2),this.gyroscopeSamples-=1);const e=this.settings.gyroscopeMaxAngleX-this.settings.gyroscopeMinAngleX,i=this.settings.gyroscopeMaxAngleY-this.settings.gyroscopeMinAngleY,s=e/this.width,n=i/this.height,l=(t.gamma-(this.settings.gyroscopeMinAngleX+this.gammazero))/s,a=(t.beta-(this.settings.gyroscopeMinAngleY+this.betazero))/n;null!==this.updateCall&&cancelAnimationFrame(this.updateCall),this.event={clientX:l+this.left,clientY:a+this.top},this.updateCall=requestAnimationFrame(this.updateBind)}onMouseEnter(){this.updateElementPosition(),this.element.style.willChange="transform",this.setTransition()}onMouseMove(t){null!==this.updateCall&&cancelAnimationFrame(this.updateCall),this.event=t,this.updateCall=requestAnimationFrame(this.updateBind)}onMouseLeave(){this.setTransition(),this.settings.reset&&requestAnimationFrame(this.resetBind)}reset(){this.event={clientX:this.left+this.width/2,clientY:this.top+this.height/2},this.element&&this.element.style&&(this.element.style.transform=`perspective(${this.settings.perspective}px) `+"rotateX(0deg) rotateY(0deg) scale3d(1, 1, 1)"),this.resetGlare()}resetGlare(){this.glare&&(this.glareElement.style.transform="rotate(180deg) translate(-50%, -50%)",this.glareElement.style.opacity="0")}updateInitialPosition(){if(0===this.settings.startX&&0===this.settings.startY)return;this.onMouseEnter(),this.fullPageListening?this.event={clientX:(this.settings.startX+this.settings.max)/(2*this.settings.max)*this.clientWidth,clientY:(this.settings.startY+this.settings.max)/(2*this.settings.max)*this.clientHeight}:this.event={clientX:this.left+(this.settings.startX+this.settings.max)/(2*this.settings.max)*this.width,clientY:this.top+(this.settings.startY+this.settings.max)/(2*this.settings.max)*this.height};let t=this.settings.scale;this.settings.scale=1,this.update(),this.settings.scale=t,this.resetGlare()}getValues(){let t,e;return this.fullPageListening?(t=this.event.clientX/this.clientWidth,e=this.event.clientY/this.clientHeight):(t=(this.event.clientX-this.left)/this.width,e=(this.event.clientY-this.top)/this.height),t=Math.min(Math.max(t,0),1),e=Math.min(Math.max(e,0),1),{tiltX:(this.reverse*(this.settings.max-t*this.settings.max*2)).toFixed(2),tiltY:(this.reverse*(e*this.settings.max*2-this.settings.max)).toFixed(2),percentageX:100*t,percentageY:100*e,angle:Math.atan2(this.event.clientX-(this.left+this.width/2),-(this.event.clientY-(this.top+this.height/2)))*(180/Math.PI)}}updateElementPosition(){let t=this.element.getBoundingClientRect();this.width=this.element.offsetWidth,this.height=this.element.offsetHeight,this.left=t.left,this.top=t.top}update(){let t=this.getValues();this.element.style.transform="perspective("+this.settings.perspective+"px) rotateX("+("x"===this.settings.axis?0:t.tiltY)+"deg) rotateY("+("y"===this.settings.axis?0:t.tiltX)+"deg) scale3d("+this.settings.scale+", "+this.settings.scale+", "+this.settings.scale+")",this.glare&&(this.glareElement.style.transform=`rotate(${t.angle}deg) translate(-50%, -50%)`,this.glareElement.style.opacity=`${t.percentageY*this.settings["max-glare"]/100}`),this.element.dispatchEvent(new CustomEvent("tiltChange",{detail:t})),this.updateCall=null}prepareGlare(){if(!this.glarePrerender){const t=document.createElement("div");t.classList.add("js-tilt-glare");const e=document.createElement("div");e.classList.add("js-tilt-glare-inner"),t.appendChild(e),this.element.appendChild(t)}this.glareElementWrapper=this.element.querySelector(".js-tilt-glare"),this.glareElement=this.element.querySelector(".js-tilt-glare-inner"),this.glarePrerender||(Object.assign(this.glareElementWrapper.style,{position:"absolute",top:"0",left:"0",width:"100%",height:"100%",overflow:"hidden","pointer-events":"none"}),Object.assign(this.glareElement.style,{position:"absolute",top:"50%",left:"50%","pointer-events":"none","background-image":"linear-gradient(0deg, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 100%)",transform:"rotate(180deg) translate(-50%, -50%)","transform-origin":"0% 0%",opacity:"0"}),this.updateGlareSize())}updateGlareSize(){if(this.glare){const t=2*(this.element.offsetWidth>this.element.offsetHeight?this.element.offsetWidth:this.element.offsetHeight);Object.assign(this.glareElement.style,{width:`${t}px`,height:`${t}px`})}}updateClientSize(){this.clientWidth=window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth,this.clientHeight=window.innerHeight||document.documentElement.clientHeight||document.body.clientHeight}onWindowResize(){this.updateGlareSize(),this.updateClientSize()}setTransition(){clearTimeout(this.transitionTimeout),this.element.style.transition=this.settings.speed+"ms "+this.settings.easing,this.glare&&(this.glareElement.style.transition=`opacity ${this.settings.speed}ms ${this.settings.easing}`),this.transitionTimeout=setTimeout(()=>{this.element.style.transition="",this.glare&&(this.glareElement.style.transition="")},this.settings.speed)}extendSettings(t){let e={reverse:!1,max:15,startX:0,startY:0,perspective:1e3,easing:"cubic-bezier(.03,.98,.52,.99)",scale:1,speed:300,transition:!0,axis:null,glare:!1,"max-glare":1,"glare-prerender":!1,"full-page-listening":!1,"mouse-event-element":null,reset:!0,gyroscope:!0,gyroscopeMinAngleX:-45,gyroscopeMaxAngleX:45,gyroscopeMinAngleY:-45,gyroscopeMaxAngleY:45,gyroscopeSamples:10},i={};for(var s in e)if(s in t)i[s]=t[s];else if(this.element.hasAttribute("data-tilt-"+s)){let t=this.element.getAttribute("data-tilt-"+s);try{i[s]=JSON.parse(t)}catch(e){i[s]=t}}else i[s]=e[s];return i}static init(e,i){e instanceof Node&&(e=[e]),e instanceof NodeList&&(e=[].slice.call(e)),e instanceof Array&&e.forEach(e=>{"vanillaTilt"in e||(e.vanillaTilt=new t(e,i))})}}return"undefined"!=typeof document&&(window.VanillaTilt=t,t.init(document.querySelectorAll("[data-tilt]"))),t}();
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>coba tilt.js</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-0evHe/X+R7YkIZDRvuzKMRqM+OrBnVFBL6DOitfPri4tjfHxaWutUpFmBp4vmVor" crossorigin="anonymous">
<style>
*{
margin: 0;
padding: 0;
}
.kotak{
width: 200px;
height: 200px;
background-color: aqua;
margin: 50px auto;
display: flex;
}
.kotak h3{
margin: auto;
}
</style>
</head>
<body>
<script src="vanilla-tilt.min.js" integrity="sha512-K9tDZvc8nQXR1DMuT97sct9f40dilGp97vx7EXjswJA+/mKqJZ8vcZLifZDP+9t08osMLuiIjd4jZ0SM011Q+w==" crossorigin="anonymous" referrerpolicy="no-referrer">
</script>
<!-- <h1>my judul</h1> -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.2.0-beta1/dist/js/bootstrap.bundle.min.js" integrity="sha384-pprn3073KE6tl6bjs2QrFaJGz5/SUsLqktiwsUTF55Jfv3qYSDhgCecCxMW52nD2" crossorigin="anonymous"></script>
<div class="kotak" data-tilt data-tilt-max="50" data-tilt-speed="400" data-tilt-perspective="500">
<h3>tulisanku</h3>
</div>
</body>
</html>
I think the issue is you need to add transform styles to your container element and child h3 - assuming you want a 3d style parallax effect.
You also need to add the following js to your page to initialize the effect for your element:
VanillaTilt.init(document.querySelector('.kotak'), {
max: 25,
speed: 400
});
Just add the following css to your elements and the effect should work:
.kotak{
// add these two styles
transform-style: preserve-3d;
transform: perspective(1000px);
}
.kotak h3{
// add this style
transform: translateZ(20px);
}
Look at this fiddle for reference.

How to animate slide down Jquery's addClass?

Any idea how to make it slide down ? i tried to pass second argument with a time but it swings it left.
Should i use another method ?
$(document).on('click', '#bar', function () {
$("#baz").addClass("foo");
});
body{
height:200px;
position:relative;
}
.foo{
position:absolute;
bottom:0;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<script src="https://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
</head>
<body>
<button id="bar">PUSH IT DOWN</button>
<div id="baz">TEST</div>
</body>
</html>
You can do this with CSS. Add an animation to your foo class and add an #keyframes rule for animating the tween of the position of the absolute positioned element. Just make sure the class you're adding foo, in your case, has a position set to the position you wish it to be when the animation is finished.
$(document).on('click', '#bar', function() {
$("#baz").addClass("foo");
});
body {
height: 200px;
position: relative;
}
.foo {
position: absolute;
animation: slidedown .5s ease-in-out;
bottom: 0;
}
#keyframes slidedown {
0% {
/* since the .foo class is set to bottom: 0, we will start at 0% to 160px*/
bottom: 160px;
}
100% {
/* we end at 0, which will be the bottom of the parent divs height */
bottom: 0;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<script src="https://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
</head>
<body>
<button id="bar">PUSH IT DOWN</button>
<div id="baz">TEST</div>
</body>
</html>
jQuery has built in functionality for that. See https://api.jquery.com/slideDown/ for details and example

JavaScript jump function failing, cannot find error [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 2 years ago.
Improve this question
I have the beginnings of a simple game in JavaScript, CSS and HTML and the game was working until I created a jump function. OnClick, the character element (generated by the css as the green rectangle) should jump. Instead, it is static and doesn't move.
Initially, I had this code:
.animate{
animation: jump 500ms;
}
in the character's CSS, and it jumped continuously without any user interaction.
What have I done wrong? I assume it is something to do with this:
function jump(){
character.classList.add("animate");
setTimeout(function(){
character.classList.remove("animate");
},500);
}
For an answer, I would appreciate the error to be pointed out, with new code and a clear explanation as to how the setTimeout function works. Is setTimeout an existing inbuilt method, and if so where do we find documentation on these things?
CODE
var character = document.getElementById("character");
var enemy = document.getElementById("enemy");
//adding the animate function in the css here, so it is applied to our character
function jump() {
character.classList.add("animate");
setTimeout(function() {
character.classList.remove("animate");
}, 500);
}
* {
padding: 0;
margin: 22;
}
#game {
width: 500px;
height: 500px;
border: 1px solid #319b4e;
}
#character {
width: 30px;
height: 120px;
background-color: green;
position: relative;
top: 380px;
border-radius: 20px;
/*animation: jump 500ms */
}
/* new class called animate */
.animate {
animation: jump 500ms;
}
#enemy {
width: 60px;
height: 60px;
background-color: red;
border-radius: 14px;
position: relative;
top: 320px;
left: 440px;
animation: moveenemy 1s infinite linear;
}
#keyframes moveenemy {
0% {
left: 440px;
}
50% {
top: 58px;
}
100% {
left: 0px;
top: 320x;
}
}
#keyframes jump {
0% {
top: 380px;
}
30% {
top: 200px;
}
50% {
top: 200px;
}
100% {
top: 380px;
}
}
<!DOCTYPE html>
<html lang="en" onclick="jump()">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1>Game</h1>
<p>My first ever game</p>
<p>We all have an enemy</p>
<div id="game">
<div id="character"></div>
<div id="enemy"></div>
</div>
<script src="script.js"></script>
</body>
</html>
The issue, after copying the code and testing it, is that the term
document.getElementById was spelled with a lowercase b, like document.getElementbyId, these two lines should instead be:
var character = document.getElementById("character");
var enemy = document.getElementById("enemy");`
As for setTimeout, it is a built in function , that executes a function (provided in first paramter) after a certain amount of time (specified in second parameter), this function works in the background, so it doesn't block other things from happening.
For more information on setTimeout (I used this website when I first started learning html etc....)
If you want to change it to the up arrow instead, simply add an event listener to check for the keyup event, and check that the keycode matches that for the up arrow (38), and other keys can be checked by console.loging the keyCode for the event, so somewhere in your JavaScript, do
addEventListener("keyup", function(e) {
if(e.keyCode == 38) jump()
})
So...
The entire snippet is
var character = document.getElementById("character");
var enemy = document.getElementById("enemy");
//adding the animate function in the css here, so it is applied to our character
function jump(){
character.classList.add("animate");
setTimeout(function(){
character.classList.remove("animate");
},500);
}
addEventListener("keyup", function(e) {
if(e.keyCode == 38) jump()
})
*{
padding:0;
margin:22;
}
#game{
width:500px;
height:500px;
border:1px solid #319b4e;
}
#character{
width:30px;
height:120px;
background-color:green;
position:relative;
top:380px;
border-radius:20px;
/*animation: jump 500ms */
}
/* new class called animate */
.animate{
animation: jump 500ms;
}
#enemy{
width:60px;
height:60px;
background-color:red;
border-radius:14px;
position:relative;
top:320px;
left:440px;
animation: moveenemy 1s infinite linear;
}
#keyframes moveenemy{
0%{left:440px;}
50%{top:58px;}
100%{left:0px; top:320x;}
}
#keyframes jump{
0%{top:380px;}
30%{top:200px;}
50%{top:200px;}
100%{top:380px;}
}
<!DOCTYPE html>
<html lang="en" onclick="jump()">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1>Game</h1>
<p>My first ever game</p>
<p>We all have an enemy</p>
<div id="game">
<div id="character"></div>
<div id="enemy"></div>
</div>
<script src="script.js"></script>
</body>
</html>
Now working
Issue is:your write document.getElementbyId("character") but character b of getElementbyid is small so it through error
so correct is document.getElementById("character")
var character = document.getElementById("character");
var enemy = document.getElementById("enemy");
//adding the animate function in the css here, so it is applied to our character
function jump(){
character.classList.add("animate");
setTimeout(function(){
character.classList.remove("animate");
},500);
}
*{
padding:0;
margin:22;
}
#game{
width:500px;
height:500px;
border:1px solid #319b4e;
}
#character{
width:30px;
height:120px;
background-color:green;
position:relative;
top:380px;
border-radius:20px;
/*animation: jump 500ms */
}
/* new class called animate */
.animate{
animation: jump 500ms;
}
#enemy{
width:60px;
height:60px;
background-color:red;
border-radius:14px;
position:relative;
top:320px;
left:440px;
animation: moveenemy 1s infinite linear;
}
#keyframes moveenemy{
0%{left:440px;}
50%{top:58px;}
100%{left:0px; top:320x;}
}
#keyframes jump{
0%{top:380px;}
30%{top:200px;}
50%{top:200px;}
100%{top:380px;}
}
<!DOCTYPE html>
<html lang="en" onclick="jump()">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1>Game</h1>
<p>My first ever game</p>
<p>We all have an enemy</p>
<div id="game">
<div id="character"></div>
<div id="enemy"></div>
</div>
<script src="script.js"></script>
</body>
</html>
Is setTimeout an existing inbuilt method, and if so where do we find documentation on these things?
Yes, setTimeout is an inbuilt method. You can learn about more in here MDN Web Docs.
how the setTimeout function works
So, setTimeout method accepts a function/code and a delay (in ms) after which it will execute it. Refer to the above link.
It takes the event into event loop that will make it async call.
I will look into the code after a while and get back to you! :D
Bookmark MDN Web Docs, it is really handy!

Uncaught TypeError: Cannot set property 'display' of undefined and loader not disappearing

I work with Brackets and currently trying to add a loading page to the website I'm working on.
I have come across a problem in which I get the following error: "Uncaught TypeError: Cannot set property 'display' of undefined".
In addition, the loader is not disappearing.
Here is my code:
HTML
!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<link rel="stylesheet" type="text/css" href="css/main.css">
<link href="https://fonts.googleapis.com/css2?family=Assistant&display=swap" rel="stylesheet">
</head>
<body>
<div class="loader" id="loader"></div>
<script>
var loader = document.getElementById('loader').style.display='block';
window.addEventListener ("load", function() {
//Hide the spinner after 2 seconds
setTimeout(function(){loader.style.display = 'none';}, 2000);
});</script>
<div class="content">
Website content,,,, </div>
CSS:
.loader {
position: fixed;
left: 0px;
top: 0px;
width: 100%;
height: 100%;
z-index: 9999;
background: url('https://lkp.dispendik.surabaya.go.id/assets/loading.gif') 50% 50% no-repeat rgb(249,249,249);
}
`
This line:
var loader = document.getElementById('loader').style.display='block';
initializes the variable loader with the string "block". You have to use two separate statements:
var loader = document.getElementById('loader');
loader.style.display='block';

Fade in/out doesn't work with an append div

Tried the best I could and did some research, I still couldn't figure it out.
My goal is to create an easy coded lightbox for a part of my final examination website that im working on.
Please need help with this annoying problem of mine, would be very appreciated!
$(document).ready(function () {
$('button').click(function() {
$('body').append(' <div id="lb-shadow"><p id="lb-x">[ x ]</p></div> ');
$('body').append(' <div id="lb-container"></div> ');
$('#lb-shadow').fadeIn(6000 );
$('#lb-container').fadeIn(6000);
$('#lb-shadow').click(function(){
$('#lb-container').fadeOut(6000);
$('#lb-shadow').fadeOut(6000);
$('#lb-container').detach();
$('#lb-shadow').detach();
});
});
});
#lb-btn{
position:absolute;
outline:0;
border:0;
padding:5px 10px;
cursor:pointer;
background-color:black;
}
#lb-btn p{
padding:5px;
color:#ccc;
border:1px solid white;
}
#lb-shadow{
position:absolute;
left:0;
right:0;
height:100%;
width:100%;
background-color:rgba(0, 0, 0, 0.7);
}
#lb-x{
color:#ccc;
text-transform:uppercase;
float:right;
margin:15px;
cursor:pointer;
transition: ease .3s;
}
#lb-x:hover{
color:white;
}
#lb-container{
position:absolute;
height:400px;
width:600px;
left:calc(50% - 300px);
top:calc(50% - 200px);
background-color:white;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Min hemsida</title>
<link rel="stylesheet" type="text/css" href="css/cindex.css">
<link href="https://fonts.googleapis.com/css?family=Raleway" rel="stylesheet" type="text/css">
<link href='https://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<script src="js/cindex.js"></script>
</head>
<body>
<button id="lb-btn"><p> Login / Register </p></button>
</body>
</html>
If the problem is the click handler, try attaching the event listener globally like so, this way should work even if the element is created after the listener. (Otherwise the duplicate comment on your question should solve the issue)
$(document).ready(function () {
$(document).on('click', '#lb-shadow', function(){
$('#lb-container').fadeOut(6000);
$('#lb-shadow').fadeOut(6000);
$('#lb-container').detach();
$('#lb-shadow').detach();
});
$('button').click(function() {
$('body').append('<div id="lb-shadow"><p id="lb-x">[ x ]</p></div>');
$('body').append('<div id="lb-container"></div>');
$('#lb-shadow').fadeIn(6000);
$('#lb-container').fadeIn(6000);
});
});
I solved it!
I just added display:block on the lb-container and lb-shadow. Apperently the fade effects trigger it automatically and I did cut down my js code aswell.
$(document).ready(function () {
$('button').click(function() {
$('body').append(' <div id="lb-shadow"><p id="lb-x">[ x ]</p></div> ');
$('body').append(' <div id="lb-container"></div> ');
$('#lb-shadow').fadeIn();
$('#lb-container').fadeIn();
$('#lb-shadow').click(function(){
$('#lb-container').fadeOut();
$('#lb-shadow').fadeOut();
});
});
});

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