Develop Reference

How do I style a button as a toggle that changes styling when clicked

I'm using the following code to change prices in my pricing table:
function myFunction() {
var x = document.getElementById("prijs-small");
if (x.innerHTML === "17,50") {
x.innerHTML = "13,50";
} else {
x.innerHTML = "17,50";
}
var x = document.getElementById("prijs-medium");
if (x.innerHTML === "58") {
x.innerHTML = "30,50";
} else {
x.innerHTML = "58";
}
var x = document.getElementById("prijs-large");
if (x.innerHTML === "128,50") {
x.innerHTML = "61";
} else {
x.innerHTML = "128,50";
}
}
.prijs-button {
background-color: white;
color: #012d5d;
padding: 10px 20px;
border-radius: 30px;
}
<button class="prijs-button" onclick="myFunction()">150/350</button>
<div id="prijs-small">17,50</div>
<div id="prijs-medium">58</div>
<div id="prijs-large">128,50</div>
Now I want to style a toggle that does the same, with on the one side showing 150 (people icon) and other side 350 (people icon) as shown in this example:
As I'm using a button now to make the prices change, how can I turn this into this toggle? The green half should be the active part.
Thanks so much in advance!

Will this do? I've used a checkbox and styled it to look like a pill. Hopefully it's self-explanatory but if not drop me a comment and I'll elaborate.
body {
background-color: gray;
}
#mybutton {
width: 8rem;
height: 3rem;
border-radius: 100rem;
overflow: hidden;
}
#mybutton input {
display: none;
}
#mybutton>label {
display: flex;
}
.side {
width: 50%;
padding-inline: 0.15rem;
text-align: center;
line-height: 3rem;
background-color: white;
transition: background-color, color 300ms;
cursor: pointer;
}
#mybutton input:not(:checked)~.left {
background-color: #35CB8C;
color: white;
transition: background-color, color 300ms;
}
#mybutton input:checked~.right {
background-color: #35CB8C;
color: white;
transition: background-color, color 300ms;
}
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.0/css/all.min.css" integrity="sha512-xh6O/CkQoPOWDdYTDqeRdPCVd1SpvCA9XXcUnZS2FmJNp1coAFzvtCN9BmamE+4aHK8yyUHUSCcJHgXloTyT2A==" crossorigin="anonymous" referrerpolicy="no-referrer"
/>
<div id='mybutton'>
<label for='mybutton-checkbox'>
<input type=checkbox id='mybutton-checkbox'>
<div class='side left'>25<i class="fa fa-user" aria-hidden="true"></i></div>
<div class='side right'>100<i class="fa fa-user" aria-hidden="true"></i></div>
</label>
</div>

You can put two buttons next to each other with some border radiuses applied to them.
Some POC version here:
div.toggle {
font-size: 0; /* this is to remove empty inline space between two buttons. if you don't like it, you can use flexbox */
}
button {
width: 100px;
height: 50px;
font-size: 14px;
}
button.left {
border-right-width: 0;
border-radius: 20px 0 0 20px;
}
button.right {
border-radius: 0 20px 20px 0;
}
<div class="toggle">
<button class="left">25</button>
<button class="right">100</button>
</div>
Adding an image or icon inside button is totally possible so you can do if if you want.

By inserting two buttons with different images you might get the result you are seeking.
Then by using in CSS border-bottom-left: (The amount of px you want)px and border-top-left: (The amount of px you want)px you can style you buttons.

Each card does not open and close as expected when dynamically created with JavaScript

"use strict";
const openModal = document.querySelector('[data-create]');
const exitModal = document.querySelector('[data-close]');
const saveBtn = document.querySelector('#save');
openModal.addEventListener('click', showModal);
exitModal.addEventListener('click', closeModal);
saveBtn.addEventListener('click', saveCard);
/*
Detects if text has been inputed. If not, an error is shown
if yes the createFlashCard and closed modal function are called.
*/
function saveCard() {
let questionArea = document.querySelector('#question');
let answerArea = document.querySelector('#answer');
let showAlert = document.querySelector('.show-error-message');
if (questionArea = null || questionArea.value == '') {
if (answerArea = null || answerArea.value == '') {
showAlert.classList.remove("hide-error");
}
setTimeout(() => {
showAlert.classList.add("hide-error");
}, 3000);
} else {
closeModal();
createFlashCard();
}
}
/*
Removes the is-hidden css class to open modal
*/
function showModal(e) {
let modal = document.querySelector('.modal-design');
modal.classList.remove("is-hidden");
}
/*
Adds the is-hidden css class to close modal
*/
function closeModal() {
let modal = document.querySelector('.modal-design');
modal.classList.add('is-hidden');
}
/*
Creates a flash card using input string values.
Then renders a card using the .innerHTML property.
Each card rendered will be clickable to show the answer.
*/
function createFlashCard() {
let questionText = document.querySelector('.question-text').value;
let answerText = document.querySelector('.answer-text').value;
let cardSection = document.querySelector('.card-container');
let createArticle = document.createElement('article');
createArticle.className += "card";
createArticle.innerHTML = `
<div class="card-question-button">
<h4 id="title">${questionText}</h4>
<button id="show">></button>
</div>
<div id="answer-card">
<p id="answer-card-p">${answerText}</p>
</div>`;
cardSection.appendChild(createArticle);
openCloseCards();
}
function openCloseCards() {
let buttons = document.querySelectorAll('.card-question-button');
buttons.forEach(function (btn) {
btn.addEventListener('click', function (e) {
let questions = e.currentTarget.parentElement;
questions.classList.toggle("show-text");
})
})
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
line-height: 1.5;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
/*
variables
*/
:root {
--primary-color:#5dcbd8;
--secondary-color: hsl(186, 100%, 94%);
--third-color: #F6F6F8;
--fourth-color: #fff;
--button-border: none;
--error-color: hsl(0deg 58% 70%);
--shadow: 0px 2px 3px 0 hsla(0 , 0%, 0%, 0.2);
}
header {
padding: 15px;
color: var(--third-color);
height: 100px;
background-color: var(--primary-color);
}
/**
Prompt question card
*/
.prompt-question {
display: flex;
padding: 15px;
align-items: center;
justify-content: space-around;
}
#create {
border: var(--button-border);
border-radius: 5px;
background-color: var(--secondary-color);
height: 60px;
width: 70px;
font-size: 25px;
transition: .3s ease-in-out;
}
#create:hover {
cursor: pointer;
background-color: #b5f0f7;
}
/*
Modal Design
*/
.modal-placement{
display: flex;
justify-content: center;
}
.modal-design {
width: 600px;
padding: 20px;
display: flex;
flex-direction: column;
justify-content: space-between;
background-color: #F6F6F8;
box-shadow:var(--shadow);
border-radius: 4px;
margin: 30px;
}
.is-hidden {
visibility: hidden;
opacity: 1;
}
.erase-modal-c {
display: flex;
justify-content: flex-end;
}
#erase {
background-color:var(--error-color);
display: flex;
justify-content: center;
border: none;
padding: 5px;
height: 25px;
width: 25px;
}
#close {
margin-top: -8px;
margin-left: 3px;
font-size: 20px;
transform: rotate(45deg);
}
#erase:hover {
cursor: pointer;
}
h3 {
padding-top: 15px;
}
/**
Textarea design
*/
#question, #answer {
height: 90px;
}
textarea {
font-size: 15px;
padding: 4px;
resize: vertical;
}
#save {
border: var(--button-border);
margin-top: 25px;
height: 45px;
font-size: 15px;
background-color:var(--primary-color);
color: var(--third-color);
}
#save:hover {
cursor: pointer;
background-color: #90d8e0;
}
.show-error-message {
background-color: var(--error-color);
color: var(--fourth-color);
margin-top: 15px;
padding: 10px;
text-align: center;
}
.hide-error {
visibility: hidden;
opacity: 0;
}
/*
Card container
*/
.card-container {
display: grid;
background-color: var(--third-color);
grid-template-columns: 1fr 1fr;
grid-template-rows: 1fr;
margin-top: 40px;
}
#title {
margin-left: 10px;
}
.card {
display: flex;
margin: 20px;
flex-direction: column;
align-items: center;
background-color:var(--fourth-color);
padding: 7px;
justify-content: space-between;
box-shadow:var(--shadow);
border-radius: 5px;
transition: .3s ease-in-out;
z-index: 1000;
}
.card-question-button {
display: flex;
justify-content: space-between;
padding: 5px;
width: 100%;
}
.card-question-button:hover {
cursor: pointer;
}
/*
Answer card
*/
#answer-card {
display: none;
border-top: 1px solid rgba(0, 0, 0, 0.2);
padding: 15px;
text-align: left;
}
#answer-card-p {
text-align: left;
}
.show-text #answer-card {
display: block;
}
#show {
border: none;
background-color: var(--fourth-color);
font-size: 20px;
transition: .2s ease-in-out;
}
#show:hover {
cursor:pointer;
transform: translateX(-2px);
}
/* Media Queries */
#media screen and (max-width: 800px) {
.prompt-question {
box-shadow:var(--shadow);
border-radius: 4px;
margin: 20px;
}
.card-container {
grid-template-columns: 1fr;
}
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title></title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<header>
<h1>Flash Cards +</h1>
</header>
<article class="prompt-question">
<button id="create" data-create>+</button>
<p class="info">
Create a new card
</p>
</article>
<article class="modal-placement">
<section class="modal-design is-hidden">
<div class="erase-modal-c">
<button id="erase" data-close>
<p id="close">+</p>
</button>
</div>
<h3>Question</h3>
<textarea class="question-text textA" id="question"></textarea>
</div>
<h3>Answer</h3>
<textarea class="answer-text textA" id="answer"></textarea>
<button id="save">Save</button>
<div class="show-error-message hide-error">Please Submit Values</div>
</section>
</article>
<section class="card-container">
</section>
<script src="js/script.js"></script>
</html>
This is a flashcard project I am building. I am fairly new to programming and was looking for help on this particular bug that I cannot wrap my head around. Included in the gist is the css, html, and javascript code. Any tips on code structure is also appreciated.
Question:
When I dynamically create cards using JavaScript I want to show open and close behavior for each of them. The first card created does open and close as expected. However, the following cards do not. For example, one stays open while the other one closes.
I would like each card to open and close independently when clicked after dynamically being created. It seems the behavior is depending on the previous card.

When you call createFlashCard() The html that is generated:
<div class="card-question-button">
<h4 id="title">${questionText}</h4>
<button id="show">></button>
</div>
<div id="answer-card">
<p id="answer-card-p">${answerText}</p>
</div>
These elements will have the same ID's used more than once in a page when they should be unique. Add a unique identifier or remove the id attribute if its not needed. For example:
let cardCount=0;
function createFlashCard() {
cardCount++;
let questionText = document.querySelector('.question-text').value;
let answerText = document.querySelector('.answer-text').value;
let cardSection = document.querySelector('.card-container');
let createArticle = document.createElement('article');
createArticle.className += "card";
let title="title"+ cardCount;
let buttonID="show"+cardCount;
...
<button id=${buttonID}>
...
}

When you are executing your openCloseCards function, you are creating multiple event listeners based on the number of items in buttons.
I'd recommend adding the event listener in your createFlashCard function and removing the function definition of openCloseCards and it's call.
With this change the code seems to working as it should.
function createFlashCard() {
let questionText = document.querySelector('.question-text').value;
let answerText = document.querySelector('.answer-text').value;
let cardSection = document.querySelector('.card-container');
let createArticle = document.createElement('article');
createArticle.className += "card";
createArticle.innerHTML = `
<div class="card-question-button">
<h4 id="title">${questionText}</h4>
<button id="show">></button>
</div>
<div id="answer-card">
<p id="answer-card-p">${answerText}</p>
</div>`;
cardSection.appendChild(createArticle);
createArticle.addEventListener('click', function(e) {
let questions = e.target.parentElement;
questions.classList.toggle("show-text");
console.log(questions.classList)
})
}

How to disable a html range slider?

(setting disabled = 'true' didn't seem to work for me so this is another way around it)
How do you disable an HTML range slider, for example when a button is pressed:
<input type="range" class="tempo-slider" max="300" min="1" value="150" />
I couldn't find the answer anywhere but this is my fix to the issue:

My fix for it was constantly resetting the range slider's value when you a user tried to change it using:
event.target.value = bpm;
Where event is the clicking of the event slider.
My full code is here, I hope it can help someone:
//This is code taken from a larger oop project and so some of the logic may look janky, but I just made it work for this example
//These two variable need to be predefined
let bpm = 150;
let playing = false;
//Select your slider and button from your html:
const tempoSlider = document.querySelector(".tempo-slider");
const playButton = document.querySelector(".play");
//Update the html function, essentially purely for styling
updateHTML = function () {
if (!playing) {
tempoSlider.classList.toggle("inactive");
playButton.innerText = "Stop";
playButton.classList.toggle("active");
playing = true;
} else {
tempoSlider.classList.toggle("inactive");
playButton.innerText = "Play";
playButton.classList.toggle("active");
playing = false;
}
};
//this fucntion updates the temp text and the slider
function changeTempo(event) {
//get the temp number from the document
const tempoText = document.querySelector(".tempo-number");
if (!tempoSlider.classList.contains("inactive")) {
//if the slider isnt inactive then update the bpm as usual
bpm = event.target.value;
tempoText.innerText = bpm;
} else {
//else just make the slider reset to the preset bmp, this way it will not change
event.target.value = bpm;
}
}
//add event listeners to the button and the range slider
tempoSlider.addEventListener("input", function (event) {
changeTempo(event);
});
playButton.addEventListener("click", function () {
updateHTML();
});
/*All of this styling just makes it clear when the temp slider is inactive*/
:root {
--background-color: #ffffff;
--text-color: #322e2f;
}
body {
display: flex;
flex-direction: column;
align-items: center;
}
.play {
width: 10rem;
transition: all 0.5s ease;
padding: 1rem 2rem;
font-size: 1.5rem;
background: var(--text-color);
color: var(--background-color);
border: none;
cursor: pointer;
margin-top: 3rem;
outline: none;
border: solid 0.01rem var(--text-color);
}
.play.active {
color: var(--text-color);
background: var(--background-color);
border: solid 0.01rem var(--text-color);
}
.tempo {
margin: 1rem;
width: 20%;
}
.tempo-slider {
transition: all 0.5s ease;
padding: 0.3rem;
-webkit-appearance: none;
appearance: none;
margin: 1rem 0rem;
outline: none;
width: 100%;
position: relative;
background: var(--text-color);
cursor: pointer;
border-radius: 2rem;
border: solid 0.05rem var(--text-color);
}
.tempo-slider::-webkit-slider-thumb {
transition: all 0.5s ease;
-webkit-appearance: none;
appearance: none;
width: 1rem;
height: 1rem;
border-radius: 2rem;
background: var(--background-color);
cursor: pointer;
}
.tempo-slider.inactive {
background: var(--background-color);
}
.tempo-slider.inactive::-webkit-slider-thumb {
background: var(--text-color);
}
.tempo p {
font-size: 1.5rem;
text-align: center;
}
<!--This is part of a larger project I have scaled back to display the slider-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="style.css" />
</head>
<body>
<!--Basic button to say start an audio file-->
<button class="play">Play</button>
<!-- slider to devide the audio's bpm-->
<div class="tempo">
<input type="range" class="tempo-slider" max="300" min="1" value="150" />
<p>Tempo: <span class="tempo-number">150</span></p>
</div>
<script src="app.js"></script>
</body>
</html>
The full project should be done in the next week and available on my github here: https://github.com/MichealNestor01

How can I unbind this .click action?

I'm trying to make this switch function so that when the on button is already clicked and the person clicks off, the on buttons CSS goes back to normal. I also want the switch to be set already on default. I've tried that too but had no luck.
HTML:
<!DOCTYPE HTML>
<html>
<head>
<title>Toggleswitch</title>
<link rel="stylesheet" type="text/css" href="main.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src='script.js' type='text/javascript'></script>
</head>
<body>
<div class="switch-container">
<button id="darkmodeon">ON</button>
<button id="darkmodeoff">OFF</button>
</div>
</body>
</html>
CSS:
body{
background-color: black;
}
.switch-container{
display: flex;
justify-content: space-between;
background-color: white;
border-radius: 50px;
padding: 5px;
width: 135px;
}
#darkmodeon{
width: 50px;
height: 50px;
border-radius: 100%;
border: none;
color: #a5a5a5;
font-family:"calibri light";
font-size: 15px;
font-weight: bold;
background-color: #e8e8e8;
}
#darkmodeoff{
width: 50px;
height: 50px;
border-radius: 100%;
border: none;
color: #a5a5a5;
font-family:"calibri light";
font-size: 15px;
font-weight: bold;
background-color: #e8e8e8;
}
jQuery:
$(document).ready(function(){
var darkon = "#darkmodeon";
var darkoff = "#darkmodeoff";
$(darkon).click(function(){
$(this).css({
"background-color": "#66e86a",
"color": "white" ,
"transition": "all 0.3s ease"
});
});
$(darkoff).click(function(){
$(this).css({
"background-color": "#66e86a",
"color": "white" ,
"transition": "all 0.3s ease"
});
$(this).unbind('click', darkon);
});
});

.click(handler) is just a surrogate for .on('click', handler). To remove any handler previously bound to any event, on any element, use:
$(selector).off('eventName', handler)
Example:
var whatever = function(){
// code here
};
$(selector).on('click', whatever); // or $(selector).click(handler);
$(selector).off('click', whatever);
While exemplifying how to unbind, the above example doesn't do much, because the function is unbound immediately after it was bound. Typically, you'd unbind based on your app's logic.
For example, if you want to unbind a click after first click, typically you'd use .off() inside the bound function:
var whatever = function(){
$(this).off('click', whatever);
// code that only runs on first click.
};
$(selector).on('click', whatever); // or $(selector).click(handler);
As for your example, why don't you just toggle a class on their parent?
$('.parent button').on('click', function(){
$(this).closest('.parent').toggleClass('on');
})
/*.parent button,
.parent.on button:first-child {
display: none;
}
.parent button:first-child,
.parent.on button:last-child {
display: inline;
}*/
/* if you don't want/like the animation, just use the simple `display` switch above */
.parent {
position: relative;
display: inline-block;
}
.parent button {
transition: opacity .2s linear, transform .3s cubic-bezier(.4,0,.2,1);
}
.parent.on button:first-child {
opacity: 0;
transform: translateX(-100%);
}
.parent button:last-child {
position: absolute;
left: 0;
top: 0;
opacity: 0;
transform: translateX(100%)
}
.parent button:first-child,
.parent.on button:last-child {
opacity: 1;
transform: translateX(0)
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parent">
<button>On</button>
<button>Off</button>
</div>

Disappearing drop down menu

I am trying to create a disappearing drop down menu that disappears into the top of the page, and you can only see the word 'open'. This opens the the menu, the word open changes to the word close which when clicked makes the menu disappear again. Help would be much appricated.
<html>
<head>
<title>dropdown</title>
<link rel="stylesheet" type="text/css" href="dropdown_css.css">
<script type = "text/javascript">
function navagate(menu) {
var panel = document.getElementById(menu),maxh = "-362px", navg = document.getElementById('navag');
if (panel.style.marginTop == maxh){
panel.style.marginTop = "0px";
navag.innerHTML = "Close";
}
else {
panel.style.marginTop = maxh;
navag.innerHTML = "Open";
}
}
window.onload = function(){panel.style.marginTop = "-362px";}
</script>
<body>
<div id = "panel">
<ul>
<li>CIT</li>
<li>Blackboard</li>
<li>Mcomms</li>
<li>Tables</li>
<li>Exams</li>
</ul>
<div id ="sections_button">
<a onclick = "navigate ('panel')" id = "navag">Open</a>
</div>
</div>
</body>
</body>
</html>
#panel {
width : 160px;
height: 130px;
background-color: gray;
margin-left: 30px;
margin-top:20px;
}
#panel li {
list-style-type: none;
}

Here, I've made a JS fiddle that may help you out: http://jsfiddle.net/942z0nhh/ I did not play around with the styling at all.
A few things I noticed:
You're making some mistakes that I think you wouldn't make if you indented properly. Take a look here, where you closed your body twice:
<a onclick = "navigate ('panel')" id = "navag">Open</a>
</div>
</div>
</body>
</body>
Second, you have some spelling mistakes:
<a onclick = "navigate ('panel')" id = "navag">Open</a>
vs
function navagate(menu) {
You can see there that your function would never be called because of it.
Lastly, your 'open' and 'close' a here:
<a onclick = "navigate ('panel')" id = "navag">Open</a>
Was within the div your function was overwriting. The function would change it to 'close'- but then it wouldn't be visible to the user anyway! I moved it above, which I hope makes sense.
Please let me know if you have any other questions, or if I misunderstood.

You could also do it only with CSS. It's the "css checkbox hack". I'm having it not like you want it but it is pretty close. Changing the text from open to close should be also possible.
At the moment, I don't know how to move the open/close label below the ul list.
*, html {
padding: 0px;
font-family: sans-serif;
}
/* Checkbox Hack */
input[type=checkbox] {
position: absolute;
display: none;
}
label {
display: block;
cursor: pointer;
content: "close";
}
/* Default State */
#wrapper {
display: block;
background: gray;
color: white;
text-align: center;
}
/* Toggled State */
input[type=checkbox]:checked ~ #menu {
display: block;
background: lightgray;
color: black;
top:0px;
}
.menuToggle ul{
display: none;
width: 100%;
}
#menu {
padding-top: 5px;
margin: 0px;
list-style: none;
}
<div id="wrapper">
<div class="menuToggle">
<label for="toggle-1">open</label>
<input type="checkbox" id="toggle-1"/>
<ul id="menu">
<li>CIT</li>
<li>Blackboard</li>
<li>Mcomms</li>
<li>Tables</li>
<li>Exams</li>
</ul>
</div>
</div>

With jQuery you could do it like the example below.
I think it is now almost like you wanted it. Maybe some styling improvements are required.
With the css hack I couldn't manage the text change. With js you have more possibilities. You could also improve/modify the animations.
$(function() {
var $menuButton = $('#openButton');
var $menu = $('#menu');
var btnToggleAnim = function() {
$menuButton.animate({opacity: 'toggle'}, "fast");
};
var menuToggleAnim = function() {
$('#menu').animate({
height:'toggle',
//opacity: 'toggle'
}, { duration: "slow" });
};
$('#closeButton,#openButton').on('click', function() {
menuToggleAnim();
btnToggleAnim();
});
});
*, html {
padding: 0px;
font-family: sans-serif;
}
a {
text-decoration:none;
}
#openButton {
display:block;
background: gray;
color: #fff;
text-decoration: none;
border: 2px solid lightgray;
border-radius: 15px;
}
#closeButton{
display: block;
background: gray;
color: #fff;
text-align: center;
border: 2px solid lightgray;
border-bottom-left-radius: 13px;
border-bottom-right-radius: 13px;
}
#wrapper {
display: block;
text-align: center;
}
#menu {
display: none;
background: lightgray;
color: black;
padding-top: 5px;
margin: 0px;
list-style: none;
}
#menu {
color: #000;
text-decoration: none;
border: 2px solid lightgray;
border-radius: 15px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="wrapper">
open
<ul id="menu">
<li>CIT</li>
<li>Blackboard</li>
<li>Mcomms</li>
<li>Tables</li>
<li>Exams</li>
<li>close</li>
</ul>
</div>