LTLFTP here.
I finally have a problem seemingly only you can solve. I'm trying to create an accordion style menu and I would like a transition effect. The problem is, whenever I change the max-height property, the transitions happen in the wrong order, the transition durations are not the same, and a mysterious delay shows up.
Any insight into this little problem would be wonderful. Thanks in advance. Here is the code:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css\default.css">
<style>
.content {
margin-top: 50px;
width: 1024px;
margin-left: auto;
margin-right: auto;
background-color: #fefefe;
border: 1px solid #888;
padding: 1em;
}
.title {
text-align: center;
}
.dresser {
border: 1px solid #888;
padding: auto 1em;
}
.dresser h2 {
margin: 0px;
padding: 2px;
background-color: #888;
color: #fefefe;
cursor: pointer;
}
.drawer {
padding: 0em 1em;
overflow-y: hidden;
max-height: 0px;
transition-property: max-height;
transition-duration: 2s;
}
</style>
</head>
<body onload="enableDresser();">
<div class="content">
<div class="title">
<h1>Dashboard</h1>
</div>
<div class="dresser">
<h2 class="drawerLabel"> <span>▸</span> Contact</h2>
<div class="drawer">
<h1>Stuff</h1>
</div>
<h2 class="drawerLabel"> <span>▸</span> Links</h2>
<div class="drawer">
<h1>Stuff</h1>
</div>
<h2 class="drawerLabel"> <span>▸</span> Documents</h2>
<div class="drawer">
<h1>Stuff</h1>
</div>
<!-- <h2 class="drawerLabel"> <span>▸</span> Guides</h2>
<div class="drawer">
<h1>Stuff</h1>
</div>-->
</div>
</div>
<script type="text/javascript">
var drawerLabels = document.getElementsByClassName("drawerLabel");
//console.log(drawerLabels);
function enableDresser() {
for (var i = 0; i < drawerLabels.length; i++) {
drawerLabels[i].onclick = function() {
openDrawer(this);
}
}
openDrawer(drawerLabels[1]);
}
function closeDresser() {
for (i=0; i<drawerLabels.length; i++) {
drawerLabels[i].firstElementChild.innerHTML = "▸";
drawerLabels[i].nextElementSibling.style.maxHeight = "0px";
}
}
function openDrawer(labelElement) {
closeDresser();
labelElement.firstElementChild.innerHTML = "▾";
labelElement.nextElementSibling.style.maxHeight = "1000px";
}
</script>
</body>
</html>
Related
I am only attempting to do a simple modal, and nothing is working right accept the HTML and CSS,
Javascript acts like it is not connected to the HTML sheet at all.
It has a button that i am supposed to click and the event handler should make the popup open but instead, the popup shows up immediately after the page loads, which is totally contrary to my script. Here is the code:
const pop = document.getElementById('pop')
const x = document.getElementById('x')
const overlay = document.getElementById('overlay')
const modal = document.getElementById('modal')
const open = function() {
modal.classList.remove('hidden');
overlay.classList.remove('hidden');
}
const close = function() {
modal.classList.add('hidden');
overlay.classList.add('hidden');
}
pop.addEventListener('click', open, false);
x.addEventListener('click', close, false);
overlay.addEventListener('click', close, false);
.pop {
padding: 10px 15px;
background: #4e8b8f;
border: none;
border-radius: 1.2px;
font-family: Impact;
color: black;
margin-top: 10px;
cursor: pointer;
}
.modal {
background-color: #4e8b8f;
border-radius: 1.3px;
padding: 1rem;
width: 15rem;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 6;
font-family: Impact;
}
.x {
position: absolute;
top: 0;
right: 0;
background-color: transparent;
border: none;
border-radius: 1px;
color: red;
font-size: 10px;
cursor: pointer;
}
.overlay {
position: absolute;
top: 0;
left: 0;
background-color: rgba(0, 0, 0, 0.7);
backdrop-filter: blur(3px);
border-radius: 2px;
height: 100%;
width: 100%;
z-index: 5;
}
.hidden {
display: none;
}
<!DOCTYPE html>
<html>
<!-----tab header---------------->
<head>
<title>Jalloh Web Construction Home</title>
<link href=Afri-culture.css rel="stylesheet">
<script src="Afri-culture.js"></script>
<link rel="shortcut icon" type="image/jpg" href="jalloh white.jpg">
<meta charset="utf-8" />
</head>
<header name="container">
<!-----nav bar------>
<div class="container">
<img id="clarkweb" src="jalloh.jpg" alt="jalloh web construction">
<nav>
<ul>
<!----- <li>Home</li>----->
<li>About Me</li>
<li>My Hobbies</li>
<li>Contact Me</li>
</ul>
</nav>
</div>
</header>
<h1>Welcome To My Portfolio</h1>
<button class="pop" id="pop">Enter</button>
<div class="modal hidden">
<br>
<button class="x" id="x">x</button>
<img src="smokegif.gif" id="smoke">
<h3>Under Construction</h3>
</div>
<div class="overlay hidden"></div>
<body id=body>
<br>
</body>
</div>
</div>
</div>
<hr>
<div class="container2">
<footer>
<img id="clarktwo" src="jalloh white.jpg" alt="clark web">
</footer>
</div>
</html>
You use document.getElementById('modal'):
const pop = document.getElementById('pop')
...
const modal = document.getElementById('modal')
const open = function() {
modal.classList.remove('hidden');
overlay.classList.remove('hidden');
}
...
pop.addEventListener('click', open, false);
But you don't have id="modal" inside set for it:
<div class="modal hidden">
The animations work perfectly on shapes. But audio files dont play. What might be the reason?
I added all the html, css, and javascript files for you to see.
It still doesnt let me post it, so i am extending the question. I hope someone can solve this issue. Thank you in advance. I'd be so happy for your help
var buttonColours = ["red","blue","green","yellow"];
var gamePattern = [];
function nextSequence() {
var randomNumber = Math.floor(Math.random()*4); // 0-3
var randomChosenColour = buttonColours[randomNumber];
gamePattern.push(randomChosenColour);
//1. Use jQuery to select the button with the same id as the randomChosenColour
$("#"+randomChosenColour).fadeIn().fadeOut().fadeIn();
var audio = new Audio("sounds/" + randomChosenColour + ".mp3");
audio.play();
}
nextSequence();
body {
text-align: center;
background-color: #011F3F;
}
#level-title {
font-family: 'Press Start 2P', cursive;
font-size: 3rem;
margin: 5%;
color: #FEF2BF;
}
.container {
display: block;
width: 50%;
margin: auto;
}
.btn {
margin: 25px;
display: inline-block;
height: 200px;
width: 200px;
border: 10px solid black;
border-radius: 20%;
}
.game-over {
background-color: red;
opacity: 0.8;
}
.red {
background-color: red;
}
.green {
background-color: green;
}
.blue {
background-color: blue;
}
.yellow {
background-color: yellow;
}
.pressed {
box-shadow: 0 0 20px white;
background-color: grey;
}
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Simon</title>
<link rel="stylesheet" href="styles.css">
<link href="https://fonts.googleapis.com/css?family=Press+Start+2P" rel="stylesheet">
</head>
<body>
<h1 id="level-title">Press A Key to Start</h1>
<div class="container">
<div lass="row">
<div type="button" id="green" class="btn green">
</div>
<div type="button" id="red" class="btn red">
</div>
</div>
<div class="row">
<div type="button" id="yellow" class="btn yellow">
</div>
<div type="button" id="blue" class="btn blue">
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="game.js"></script>
</body>
</html>
My code shows and hides divs depending on which button the user clicks, implemented by simple myElement.style.display = 'none'; statements.
Can transitions be used when these divs are shown/hidden? I.e. when button-1 is clicked, text relating to button-1 fades into view; when button-2 is clicked, text relating to button-2 fades into view as the previous button-1 text fades out?
As is, the divs snap in and out of view. I am looking for a smoother transition.
I have attempted it with the code which is shown commented out. It just doesn't work. Any tips are much appreciated, thank you.
JS
var visibleDivId = null;
function divVisibility(divId) {
if(visibleDivId === divId) {
visibleDivId = null;
} else {
visibleDivId = divId;
}
hideNonVisibleDivs();
}
function hideNonVisibleDivs() {
var i, divId, div;
for(i = 0; i < divs.length; i++) {
divId = divs[i];
respoding_div = document.getElementById(divId);
if(visibleDivId == divId) {
respoding_div.style.display = 'block';
// respoding_div.style.transition = 'display 0.3s ease-in block'
}
else {
respoding_div.style.display = 'none';
// respoding_div.style.transition = 'display 0.3s ease-in none'
}
}
}
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="container" style="text-align:center; margin:0 auto;">
<div class="card-container" style="margin:0 auto; width:50%; display: flex; align-items: center; justify-content: center; padding-bottom:10px;">
<div class='accordion' onclick="divVisibility('Core1');">
<img src='https://img.icons8.com/dotty/2x/external-link-squared.png' width="50px">Button-1
</div>
<div class='accordion' onclick="divVisibility('Core2');">
<img src='https://img.icons8.com/dotty/2x/globe-earth.png' width="50px">Button-2
</div>
<div class='accordion' onclick="divVisibility('Core3');">
<img src='https://img.icons8.com/dotty/2x/torrent.png' width="50px">Button-3
</div>
</div>
<div class="all_divs">
<div id="Core1" class="subdiv" style="display:none;">TEXT #1</div>
<div id="Core2" class="subdiv" style="display:none;">TEXT #2</div>
<div id="Core3" class="subdiv" style="display:none;">TEXT #3</div>
</div>
</div>
</div>
</body>
</html>
CSS
body{
font-family: "IBM Plex Sans", sans-serif;
}
.accordion {
cursor: pointer;
border: none;
text-align: center;
outline: none;
font-size: 15px;
padding-left:100px;
padding-right:100px;
padding-top: 20px;
width: 80px;
}
.accordion:hover {
opacity: 0.7;
}
.accordion img {
width: 50px;
margin: 0 auto;
}
.all_divs > div {
color: #232f3e;
width: 95%;
text-align: center;
background-color:#fafafa;
position: absolute;
padding:2%;
border-top: 2px solid #e6e7e8;
}
h1{
font-weight: lighter;
color: #232f3e;
}
td{
padding: 2%;
}
it will not work not because of the syntax or something wrong in JS but because of the display property can't be transitioned from state to another. u can use opacity for that.
I use the slick framework that allows me to have a carousel.
The problem is that on the second page of my carousel there is a css effect that starts. (code below)
The problem is that the css effect starts when the site is opened. So when I scroll the
caroussel the effect is already "past". I want the effect to start after clicking on one of the two
arrows (right and left).
I import the slick framework through url and saw that the button code is on
one of the url so I modify myself the button in my code (javascript).
After doing that nothing happens.
I do not understand !
Looking forward to an answer from you for my two problems.
Cordially.
/*(function() {
var slideContainer = $('.slide-container');
slideContainer.slick({
//id added to execute the function below
//https://cdn.jsdelivr.net/jquery.slick/1.6.0/slick.min.js
//In this url you can see that prevArrow and nextArrow are the buttons
prevArrow: '<button id="prev" type="button" data-role="none" class="slick-prev" aria-label="Previous" tabindex="0" role="button">Previous</button>',
nextArrow: '<button id="nex" type="button" data-role="none" class="slick-next" aria-label="Next" tabindex="0" role="button">Next</button>',
});
$("#prev, #nex").click(function() {
$(".expand").addClass("myeffect2");
});
*/
$(".slide-container").slick({
});
body {
background-color: black;
color: #9E9E9E;
}
.slide-container {
margin: auto;
width: 600px;
text-align: center;
}
.wrapper {
padding-top: 100px;
padding-bottom: 40px;
}
.wrapper:focus {
outline: 0;
}
.card {
background: white;
width: 300px;
display: inline-block;
margin: auto;
border-radius: 19px;
position: relative;
text-align: center;
-webkit-box-shadow: -1px 15px 30px -12px black;
box-shadow: -1px 15px 30px -12px black;
}
/***** Effect *****/
.expand-bg {
background: none repeat scroll 0 0 #e6e6e6;
border-radius:16px;
height: 16px;
margin-bottom: 5px;
}
.expand {
border-radius: 13px;
height: 12px;
margin: 2px;
position: absolute;
}
.myeffect2 {
width:90%;
background:#000000;
-moz-animation:myeffect 8s ease-out;
-webkit-animation:myeffect 8s ease-out;
}
#-moz-keyframes myeffect2 {
0% {
width:0px;
}
100% {
width:90%;
}
}
#-webkit-keyframes myeffect {
0% {
width:0px;
}
100% {
width:90%;
}
}
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<title>Test</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">
<link rel='stylesheet prefetch' href='https://cdn.jsdelivr.net/jquery.slick/1.6.0/slick.css'>
<link rel='stylesheet prefetch' href='https://cdn.jsdelivr.net/jquery.slick/1.6.0/slick-theme.css'>
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<div class="slide-container">
<!--page1-->
<div class="wrapper">
<div class="card profile">
<div class="card__level card__level--profile">
<p>My name</p>
</div>
</div>
</div>
<!--end page1-->
<!--page2-->
<div class="wrapper">
<div class="card skills">
<div class="card__unit-name"</div>
</br>
<h3>My effect</h3>
<div class="expand-bg"> <div class="expand myeffect2"> </div> </div>
</div>
</div>
<!--end page2-->
</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.2/jquery.min.js'></script>
<script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
<script src='https://cdn.jsdelivr.net/jquery.slick/1.6.0/slick.min.js'></script>
<script src="js/index.js"></script>
</body>
</html>
Scope the myeffect2 class or any class with an animation that you don't want to run unless the slide is active to the slick-active class.
Slick adds the "slick-active" class to slides that are in view.
.slick-active .myeffect2 {
width:90%;
background:#000000;
-moz-animation:myeffect 8s ease-out;
-webkit-animation:myeffect 8s ease-out;
}
Went through a few questions on stackoverflow but could not solve the error.
The intention is to modify and add html to the main document reading a JSON structure.
Uncaught TypeError: Cannot read property 'appendChild' of undefined
Update 1:-
Typo was corrected, marked in code.
Defer was introduced at script load in head section, this makes sure the entire document is loaded before the script starts execution.
Here I am trying to read a JSON, and then looping across its content to add to my main html document.
var json={
"fruit":[
{
"fruitname":"Apple",
"location":"data/png/apple.png",
"quantity":"25",
"price":"2"
},
{
"fruitname":"Mango",
"location":"data/png/mango.png",
"quantity":"35",
"price":"3"
}
]
};
//var cards = document.getElementsByClassName("content"); -- corrected typo
var cards = document.getElementById("content");
var fruits = json.fruit;
//alert(fruits.length);
//alert(fruits[1].fruitname);
for (var i = 0; i < fruits.length; i++) {
var cardelement=document.createElement('div');
cardelement.className = 'card';
// alert(cardelement);
cards.appendChild(cardelement);
var object = document.createElement('div');
object.className = 'object';
// alert(object);
cardelement.appendChild(object);
var image = document.createElement('img');
image.setAttribute("src", fruits[i].location);
object.appendChild(image);
var objectback = document.createElement('div');
objectback.className = 'object-back';
cardelement.appendChild(objectback);
var backfruit = document.createElement('div');
backfruit.className = 'back-fruit';
backfruit.innerHTML = fruits[i].fruitname;
objectback.appendChild(backfruit);
var backprice = document.createElement('div');
backprice.className = 'back-price';
backprice.innerHTML = fruits[i].price + "$ per unit";
objectback.appendChild(backprice);
var backquantity = document.createElement('div');
backquantity.className = 'back-quantity';
backquantity.innerHTML = "In Stock " + fruits[i].quantity + " units";
objectback.appendChild(backquantity);
}
*
{
margin: 0 0;
border: none;
text-align:center
}
#header
{
background-color: #F44336;
font-family: 'Bungee Shade', cursive;
font-size: 30px;
height: 20%
}
#footer
{
font-family: 'Roboto', sans-serif;
position: fixed;
height: 80%;
width: 100%
}
#content
{
width: 75%;
height: 100%;
border-right: thick solid #F44336;
float: left;
text-align: left;
overflow: scroll
}
#cart
{
background-color:#3F51B5;
width: 25%;
border-bottom: thick dashed #F44336;
float: right
}
.card
{
display:inline-block;
width: 100px;
height: 100px;
margin: 40px;
padding: 20px;
box-shadow: -1px 9px 20px 4px #000000;
border: 5px solid #F44336;
border-radius: 26px 26px 26px 26px;
transition: all .2s ease-in-out
}
.object .object-back
{
display:block;
position:static
}
.object-back
{
display: none
}
.object img
{
height: 100px;
width: 100px
}
.back-fruit
{
font-size: 20px;
padding-bottom: 5px;
margin-bottom: 10px;
border-bottom: thin solid
}
.back-price
{
font-size: 12px;
padding-bottom: 5px
}
.back-quantity
{
font-size: 10px;
padding-bottom: 10px
}
.back-pluscart
{
font-size: 15px;
background-color: #F44336;
width: auto
}
.back-pluscart img
{
height: 30px;
width: 30px
}
.card:hover
{
box-shadow: -1px 9px 46px 11px #000000
}
.card:hover .object
{
display: none
}
.card:hover .object-back
{
display:inline-block;
opacity: 1
}
<!DOCTYPE html>
<html>
<head>
<title> The Shopkeeper </title>
<link href="https://fonts.googleapis.com/css?family=Bungee+Shade" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
<link rel = "stylesheet" type = "text/css" href = "style/style.css" />
<script type="text/javascript" src="logic/core.js" defer></script>
<meta name="viewport" content="width=device-width">
</head>
<body>
<div id="base">
<div id="header">
<h1> Fruitkart </h1>
</div>
<div id="footer">
<div id="content">
<!--
<div class="card">
<div class="object">
<img src="data/png/apple.png" />
</div>
<div class="object-back">
<div class="back-fruit">Apple</div>
<div class="back-price">2$ per unit</div>
<div class="back-quantity">In Stock 25 pieces </div>
<div class="back-pluscart"> <img src="data/png/cart.png" /> </div>
</div>
</div>
-->
</div>
<div id="cart">
django
is a big boy
</div>
</div>
</div>
</body>
</html>
Why was content undefined
You try to get content by ClassName
var cards = document.getElementsByClassName("content")[0];
But find content in your html:
<div id="content">
Notice that the ID is content. Either change it to class="content" or change the previous code to document.getElementByID("content");
Two issues:
There is no element with class content. On the other hand there is an element with that id. So you probably want to do:
document.getElementById("content");
The script runs too soon -- the elements are not loaded yet when it runs. Either put the script just before the closing </body> tag, or put the code inside an event handler, like
window.addEventListener('DOMContentLoaded', function() {
// your code
});
You are trying to access an element with class name content var cards =document.getElementsByClassName("content")[0]; & there is no class named content
You can modify your code like this ,
var cards = document.getElementById("content");
var json={
"fruit":[
{
"fruitname":"Apple",
"location":"data/png/apple.png",
"quantity":"25",
"price":"2"
},
{
"fruitname":"Mango",
"location":"data/png/mango.png",
"quantity":"35",
"price":"3"
}
]
};
var cards = document.getElementById("content");
var fruits = json.fruit;
//alert(fruits.length);
//alert(fruits[1].fruitname);
for (var i = 0; i < fruits.length; i++) {
var cardelement=document.createElement('div');
cardelement.className = 'card';
// alert(cardelement);
cards.appendChild(cardelement);
var object = document.createElement('div');
object.className = 'object';
// alert(object);
cardelement.appendChild(object);
var image = document.createElement('img');
image.setAttribute("src", fruits[i].location);
object.appendChild(image);
var objectback = document.createElement('div');
objectback.className = 'object-back';
cardelement.appendChild(objectback);
var backfruit = document.createElement('div');
backfruit.className = 'back-fruit';
backfruit.innerHTML = fruits[i].fruitname;
objectback.appendChild(backfruit);
var backprice = document.createElement('div');
backprice.className = 'back-price';
backprice.innerHTML = fruits[i].price + "$ per unit";
objectback.appendChild(backprice);
var backquantity = document.createElement('div');
backquantity.className = 'back-quantity';
backquantity.innerHTML = "In Stock " + fruits[i].quantity + " units";
objectback.appendChild(backquantity);
}
*
{
margin: 0 0;
border: none;
text-align:center
}
#header
{
background-color: #F44336;
font-family: 'Bungee Shade', cursive;
font-size: 30px;
height: 20%
}
#footer
{
font-family: 'Roboto', sans-serif;
position: fixed;
height: 80%;
width: 100%
}
#content
{
width: 75%;
height: 100%;
border-right: thick solid #F44336;
float: left;
text-align: left;
overflow: scroll
}
#cart
{
background-color:#3F51B5;
width: 25%;
border-bottom: thick dashed #F44336;
float: right
}
.card
{
display:inline-block;
width: 100px;
height: 100px;
margin: 40px;
padding: 20px;
box-shadow: -1px 9px 20px 4px #000000;
border: 5px solid #F44336;
border-radius: 26px 26px 26px 26px;
transition: all .2s ease-in-out
}
.object .object-back
{
display:block;
position:static
}
.object-back
{
display: none
}
.object img
{
height: 100px;
width: 100px
}
.back-fruit
{
font-size: 20px;
padding-bottom: 5px;
margin-bottom: 10px;
border-bottom: thin solid
}
.back-price
{
font-size: 12px;
padding-bottom: 5px
}
.back-quantity
{
font-size: 10px;
padding-bottom: 10px
}
.back-pluscart
{
font-size: 15px;
background-color: #F44336;
width: auto
}
.back-pluscart img
{
height: 30px;
width: 30px
}
.card:hover
{
box-shadow: -1px 9px 46px 11px #000000
}
.card:hover .object
{
display: none
}
.card:hover .object-back
{
display:inline-block;
opacity: 1
}
<!DOCTYPE html>
<html>
<head>
<title> The Shopkeeper </title>
<link href="https://fonts.googleapis.com/css?family=Bungee+Shade" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
<link rel = "stylesheet" type = "text/css" href = "style/style.css" />
<script type="text/javascript" src="logic/core.js" ></script>
<meta name="viewport" content="width=device-width">
</head>
<body>
<div id="base">
<div id="header">
<h1> Fruitkart </h1>
</div>
<div id="footer">
<div id="content">
<!--
<div class="card">
<div class="object">
<img src="data/png/apple.png" />
</div>
<div class="object-back">
<div class="back-fruit">Apple</div>
<div class="back-price">2$ per unit</div>
<div class="back-quantity">In Stock 25 pieces </div>
<div class="back-pluscart"> <img src="data/png/cart.png" /> </div>
</div>
</div>
-->
</div>
<div id="cart">
django
is a big boy
</div>
</div>
</div>
</body>
</html>