How can I solve the problem of my quiz project? - javascript

I've been working on this project for a while. I found the code from the Internet. I have never created a quiz game before. I edited the code a little. But unfortunately there are some problems with the code, which are difficult for me.
So far only digits are represented as questions. I want letters to be used for questions as well. The button to run the game, the limited reflection time and the score works. Unfortunately, if you press the right answer, the spear doesn't go on, but stops, but you get a point. I want that after a correct answer new questions are added and that the user gets a point. If the user presses the wrong answer, I want the game to stop and the scores achieved to be displayed.
let playing=false;
let score=0;
let action;
let timeremain;
document.getElementById('start').onclick=function(){
if(playing===true)
{
location.reload();
}
else
{
playing=true;
document.getElementById('scoreValue').innerHTML = score ;
document.getElementById('time').style.display="block";
timeremain=60;
genQA();
document.getElementById('start').innerHTML="Reset Game";
startCount();
}
}
function startCount()
{
action = setInterval(function(){
timeremain -=1;
document.getElementById('timeremain').innerHTML = timeremain;
if(timeremain===0)
{
document.getElementById('time').style.display="none";
gameOver();
}
},1000);
}
function gameOver()
{
document.getElementById('gameover').style.display="block";
document.getElementById('scoreno').innerHTML=score;
}
function genQA() {
var x=Math.round(10*Math.random());
var y=Math.round(10*Math.random());
correctAnswer= x*y;
document.getElementById('qtn').textContent=x +' x '+y;
var correctPostion= 1+Math.round(3*Math.random());
document.getElementById('option'+correctPostion).innerHTML=correctAnswer;
}
for(i=1;i<5;i++)
{
document.getElementById('option'+i).onclick=function(){
if(playing===true)
{
if(this.innerHTML==correctAnswer)
{
score++;
document.getElementById('scoreValue').innerHTML = score ;
hide('try');
show('correct');
setTimeout(function(){
hide('correct');
},1000);
genQA();
}else{
show('try');
hide('correct');
setTimeout(function(){
hide('try');
},1000);
}
}
}
}
body,html
{
background-color: darkgray
}
.container
{
width: 600px;
height: 450px;
border: 1px solid blue;
margin: 100px auto;
/* margin-top: 150px;*/
background-color: #9DD2EA;
border-radius: 15px;
padding: 15px;
box-shadow: -4px 4px 14px;
position: relative;
}
#score
{
border: 1px solid #3affa3;
font-size: 15px;
position: absolute;
background-color: #3affa3;
box-shadow: 0px 1px 5px;
left: 500px;
font-family:sans-serif;
padding: 3px;
border-radius: 8px;
}
#try
{
border: 1px solid #f22929;
background-color: #f22929;
position: absolute;
left: 260px;
padding: 3px;
font-size: 15px;
font-family: sans-serif;
font-weight: bold;
box-shadow: 0px 1px 5px;
color: aliceblue;
display: none;
}
#correct
{
display: none;
border: 1px solid #f22929;
background-color: #43f128;
position: absolute;
left: 250px;
padding: 3px;
font-size: 15px;
font-family: sans-serif;
font-weight: bold;
box-shadow: 0px 1px 5px;
color: aliceblue;
}
#qtn
{
width: 450px;
height: 150px;
border: 1px solid blue;
margin: 50px auto 10px auto;
/* margin-top: 150px;*/
background-color: #80c3f7;
border-radius: 15px;
padding: 15px;
box-shadow: -4px 4px 14px;
position: relative;
text-align: center;
font-size: 70px;
font-family: cursive , sans-serif;
}
#note
{
width: 450px;
height: 20px;
border: 1px solid blue;
margin: 10px auto 10px auto ;
/* margin-top: 150px;*/
background-color: #80c3f7;
border-radius: 15px;
padding: 15px;
box-shadow: -4px 4px 14px;
position: relative;
font-size: 20px;
text-align: center;
font-family: sans-serif;
color: black;
}
.option
{
position: relative;
margin-left: 90px ;
position: relative;
transition: all 0.12s;
}
#option1
{
width: 100px;
height: 60px;
border: 1px solid white;
position: absolute;
background-color: #ffffff;
text-align: center;
font-size: 25px;
padding-top: 40px;
box-shadow: 0px 5px 5px;
border-radius: 5px;
cursor: pointer;
}
#option2
{
width: 100px;
height: 60px;
border: 1px solid white;
position: absolute;
left: 110px;
background-color: #ffffff;
text-align: center;
font-size: 25px;
padding-top: 40px;
box-shadow: 0px 5px 5px;
border-radius: 5px;
cursor: pointer;
}
#option3
{
width: 100px;
height: 60px;
border: 1px solid white;
position: absolute;
left: 220px;
background-color: #ffffff;
text-align: center;
font-size: 25px;
padding-top: 40px;
box-shadow: 0px 5px 5px;
border-radius: 5px;
cursor: pointer;
}
#option4
{
width: 100px;
height: 60px;
border: 1px solid white;
position: absolute;
left: 330px;
background-color: #ffffff;
text-align: center;
font-size: 25px;
padding-top: 40px;
box-shadow: 0px 5px 5px;
border-radius: 5px;
cursor: pointer;
}
#start
{
border: 1px solid #3affa3;
font-size: 15px;
position: absolute;
background-color: #CEE9F5;
box-shadow: 0px 1px 5px;
top: 440px;
left: 280px;
font-family:sans-serif;
padding: 3px;
border-radius: 8px;
font-weight: bold;
font-family: sans-serif;
background-color: #ffffff;
}
#option1:hover
{
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#option2:hover
{
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#option3:hover
{
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#option4:hover
{
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#option1:active
{
background-color: #9DD2EA;
box-shadow: 0px 0px 0px purple;
top: 5px;
}
#option2:active
{
background-color: #9DD2EA;
box-shadow: 0px 0px 0px purple;
top: 5px;
}
#option3:active
{
background-color: #9DD2EA;
box-shadow: 0px 0px 0px purple;
top: 5px;
}
#option4:active
{
background-color: #9DD2EA;
top: 5px;
box-shadow: 0px 0px 0px purple;
}
#start:hover
{
cursor: pointer;
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#start:active
{
background-color: #9DD2EA;
top: 445px;
box-shadow: 0px 0px 0px ;
}
#time
{
width: 150px;
height: 25px;
background-color: burlywood;
border: 1px solid;
position: absolute;
left: 450px;
top: 440px;
border-radius: 5px;
box-shadow: 0px 5px 5px ;
font-weight: bold;
display: none;
}
#gameover
{
width: 400px;
height: 100px;
background-color: coral;
position: absolute;
top: 120px;
text-align: center;
padding: 100px;
font-size: 40px;
color: white;
display: none;
}
<!DOCTYPE html>
<html lang="en">
<head>
<title>Math Quiz</title>
<meta name="viewport" content="width=device-width, initial-scale=1 , user-scalable=yes" >
<link rel="stylesheet" type="text/css" href="Style.css">
</head>
<body>
<div class="container">
<div id="correct">Correct</div>
<div id="try">Try Again</div>
<div id="score">
SCORE:
<span id="scoreValue">0</span>
</div>
<div id="qtn"></div>
<div id="note">Click on the Right Answer</div>
<div class="option">
<div id="option1"></div>
<div id="option2"></div>
<div id="option3"></div>
<div id="option4"></div>
</div>
<div id="start" class="box">Start Game</div>
<div id="time">Time Remaing: <span id="timeremain">0</span></div>
<div id="gameover">GAME OVER YOUR SCORE :<span id="scoreno">0</span></div>
</div>
<script src="main.js" type="text/javascript"></script>
</div>
</body>
</html>

I looked at your javascript code and i found some solutions .
This code will works for you . Its a little different : i corrected some errors .
I also added the classes for 'correct' and 'try' and modified the css file .
Here you are your corrected codes :
Javascript code:
let playing=false;
let score=0;
let action;
let timeremain;
document.getElementById('start').onclick=function(){
if(playing===true)
{
location.reload();
}
else
{
playing=true;
document.getElementById('scoreValue').innerHTML = score ;
document.getElementById('time').style.display="block";
timeremain=60;
genQA();
document.getElementById('start').innerHTML="Reset Game";
startCount();
}
}
function startCount()
{
action = setInterval(function(){
timeremain -=1;
document.getElementById('timeremain').innerHTML = timeremain;
if(timeremain===0)
{
document.getElementById('time').style.display="none";
gameOver();
}
},1000);
}
function gameOver()
{
document.getElementById('gameover').style.display="block";
document.getElementById('scoreno').innerHTML=score;
}
function genQA() {
var x=Math.round(10*Math.random());
var y=Math.round(10*Math.random());
correctAnswer= x*y;
document.getElementById('qtn').textContent=x +' x '+y;
var correctPostion= 1+Math.round(3*Math.random());
document.getElementById('option'+correctPostion).innerHTML=correctAnswer;
}
for(i=1;i<5;i++)
{
document.getElementById('option'+i).onclick=function(){
if(playing===true)
{
if(this.innerHTML==correctAnswer)
{
score++;
document.getElementById('scoreValue').innerHTML = score ;
document.getElementById('try').innerHTML=""
document.getElementById('correct').innerHTML="Correct";
setTimeout(function(){
document.getElementById('correct').innerHTML="";
},1000);
genQA();
}else{
document.getElementById('try').innerHTML="Try Again";
document.getElementById('correct').innerHTML="";
setTimeout(function(){
document.getElementById('try').innerHTML="";
},1000);
}
}
}
}
Css file :
body,html
{
background-color: darkgray
}
.container
{
width: 600px;
height: 450px;
border: 1px solid blue;
margin: 100px auto;
/* margin-top: 150px;*/
background-color: #9DD2EA;
border-radius: 15px;
padding: 15px;
box-shadow: -4px 4px 14px;
position: relative;
}
#score
{
border: 1px solid #3affa3;
font-size: 15px;
position: absolute;
background-color: #3affa3;
box-shadow: 0px 1px 5px;
left: 500px;
font-family:sans-serif;
padding: 3px;
border-radius: 8px;
}
#try
{
border: 1px solid #f22929;
background-color: #f22929;
position: absolute;
left: 260px;
padding: 3px;
font-size: 15px;
font-family: sans-serif;
font-weight: bold;
box-shadow: 0px 1px 5px;
color: aliceblue;
display: block;
}
#correct
{
display: block;
border: 1px solid #f22929;
background-color: #43f128;
position: absolute;
left: 250px;
padding: 3px;
font-size: 15px;
font-family: sans-serif;
font-weight: bold;
box-shadow: 0px 1px 5px;
color: aliceblue;
}
#qtn
{
width: 450px;
height: 150px;
border: 1px solid blue;
margin: 50px auto 10px auto;
/* margin-top: 150px;*/
background-color: #80c3f7;
border-radius: 15px;
padding: 15px;
box-shadow: -4px 4px 14px;
position: relative;
text-align: center;
font-size: 70px;
font-family: cursive , sans-serif;
}
#note
{
width: 450px;
height: 20px;
border: 1px solid blue;
margin: 10px auto 10px auto ;
/* margin-top: 150px;*/
background-color: #80c3f7;
border-radius: 15px;
padding: 15px;
box-shadow: -4px 4px 14px;
position: relative;
font-size: 20px;
text-align: center;
font-family: sans-serif;
color: black;
}
.option
{
position: relative;
margin-left: 90px ;
position: relative;
transition: all 0.12s;
}
#option1
{
width: 100px;
height: 60px;
border: 1px solid white;
position: absolute;
background-color: #ffffff;
text-align: center;
font-size: 25px;
padding-top: 40px;
box-shadow: 0px 5px 5px;
border-radius: 5px;
cursor: pointer;
}
#option2
{
width: 100px;
height: 60px;
border: 1px solid white;
position: absolute;
left: 110px;
background-color: #ffffff;
text-align: center;
font-size: 25px;
padding-top: 40px;
box-shadow: 0px 5px 5px;
border-radius: 5px;
cursor: pointer;
}
#option3
{
width: 100px;
height: 60px;
border: 1px solid white;
position: absolute;
left: 220px;
background-color: #ffffff;
text-align: center;
font-size: 25px;
padding-top: 40px;
box-shadow: 0px 5px 5px;
border-radius: 5px;
cursor: pointer;
}
#option4
{
width: 100px;
height: 60px;
border: 1px solid white;
position: absolute;
left: 330px;
background-color: #ffffff;
text-align: center;
font-size: 25px;
padding-top: 40px;
box-shadow: 0px 5px 5px;
border-radius: 5px;
cursor: pointer;
}
#start
{
border: 1px solid #3affa3;
font-size: 15px;
position: absolute;
background-color: #CEE9F5;
box-shadow: 0px 1px 5px;
top: 440px;
left: 280px;
font-family:sans-serif;
padding: 3px;
border-radius: 8px;
font-weight: bold;
font-family: sans-serif;
background-color: #ffffff;
}
#option1:hover
{
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#option2:hover
{
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#option3:hover
{
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#option4:hover
{
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#option1:active
{
background-color: #9DD2EA;
box-shadow: 0px 0px 0px purple;
top: 5px;
}
#option2:active
{
background-color: #9DD2EA;
box-shadow: 0px 0px 0px purple;
top: 5px;
}
#option3:active
{
background-color: #9DD2EA;
box-shadow: 0px 0px 0px purple;
top: 5px;
}
#option4:active
{
background-color: #9DD2EA;
top: 5px;
box-shadow: 0px 0px 0px purple;
}
#start:hover
{
cursor: pointer;
background-color: #9DD2EA;
box-shadow: 0px 5px 5px purple;
}
#start:active
{
background-color: #9DD2EA;
top: 445px;
box-shadow: 0px 0px 0px ;
}
#time
{
width: 150px;
height: 25px;
background-color: burlywood;
border: 1px solid;
position: absolute;
left: 450px;
top: 440px;
border-radius: 5px;
box-shadow: 0px 5px 5px ;
font-weight: bold;
display: none;
}
#gameover
{
width: 400px;
height: 100px;
background-color: coral;
position: absolute;
top: 120px;
text-align: center;
padding: 100px;
font-size: 40px;
color: white;
display: none;
}
Html Page :
<!DOCTYPE html>
<html lang="en">
<head>
<title>Math Quiz</title>
<meta name="viewport" content="width=device-width, initial-scale=1 , user-
scalable=yes" >
<link rel="stylesheet" type="text/css" href="Style.css">
</head>
<body>
<div class="container">
<div id="correct" class="correct">Correct</div>
<div id="try" class="try">Try Again</div>
<div id="score">
SCORE:
<span id="scoreValue">0</span>
</div>
<div id="qtn"></div>
<div id="note">Click on the Right Answer</div>
<div class="option">
<div id="option1"></div>
<div id="option2"></div>
<div id="option3"></div>
<div id="option4"></div>
</div>
<div id="start" class="box">Start Game</div>
<div id="time">Time Remaing: <span id="timeremain">0</span></div>
<div id="gameover">GAME OVER YOUR SCORE :<span id="scoreno">0</span></div>
</div>
<script src="main.js" type="text/javascript"></script>
</div>
</body>
</html>
You only have to replace your files with this codes .
I hope it helps you ! :-)

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The background color doesn't let you see the animation, just comment it;
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function onChangeCallback(ctr) {
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<div class="row">
<div class="col-4">
<div style="background-color: #fff; width: 160px; height: 50px;margin-top: 0px; padding: 4px; border-radius: 6px;font-size: 12px;" data-showflags="true" class=""></div>
</div>
<div class="col-8">
<div class="niceCountryInputSelector bg-box" style="width: 400px;" data-selectedcountry="ad" data-showspecial="false" data-showflags="true" data-i18nall="All selected" data-i18nnofilter="No selection" data-i18nfilter="Search Country..." data-onchangecallback="onChangeCallback" />
</div>
</div>
</div>
</div>
Hi,
I have made the country flag dropdown list.
In the dropdown list, whether it is scroll by mouse or search country name in the search box, the country will be autocompleted and it will be displayed in the input field with the country name and flag.
The dropdown function working properly.
Requirement:-
Without removing its Name and flag from the dropdown section, Can we display Country Flag outside of the dropdown section?. I am trying for that but I am not able to do that.
I hope someone can understand and help me out in this situation.
Thanks Lots
I modified the function onChangeCallback to place the flag to the other div.
function onChangeCallback(ctr) {
let flag=$(".niceCountryInputSelector").find("[data-flagiso='"+ctr+"']")[0];
flag=$(flag).clone();
$(".col-4").children("div:first-child").empty();
$(".col-4").children("div:first-child").append(flag);
}
So, you can append the flagObjElement to where you want to append.

Stopping HTML elements from becoming offset

#h1 {
float: center;
}
h2 {
float: center;
}
p {
font-family: "Comic Sans",sans-serif;
}
#div1 {
width: 7.5%;
height: 100px;
margin-left: 10px;
margin-right: 12px;
padding: 3%;
border-bottom: 4px solid black;
border-radius: 0px 0px 25px 25px;
background-color: white;
float:right;
position: absolute;
display: block;
right: 0px;
}
#div2 {
width: 7.5%;
height: 100px;
margin-left: 10px;
margin-right: 15%;
padding: 3%;
border-bottom: 4px solid black;
border-radius: 0px 0px 25px 25px;
background-color: white;
position: absolute;
display: block;
right: 0px;
}
#div3 {
width: 7.5%;
height: 100px;
margin-left: 10px;
margin-right: 30%;
padding: 3%;
border-bottom: 4px solid black;
border-radius: 0px 0px 25px 25px;
background-color: white;
position: absolute;
display: block;
right: 0px;
}
#div4 {
width: 101px;
height: 101px;
margin-left: 15%;
padding: 1%;
border-bottom: 4px solid black;
border-radius: 0px 25px 25px 0px;
background-color: white;
}
#div5 {
height: 101px;
padding: 10px;
border-bottom: 4px solid black;
border-radius: 0px 25px 25px 25px;
background-color: white;
margin: 1.5%;
}
#text {
border-bottom: 4px solid black;
padding: 1px;
width: 13%;
height: 50px;
border-radius: 25px 25px 0px 0px;
background-color: white;
margin-left: 1.5%;
color: #417cb8;
text-align: center;
}
#tag1 {
border-bottom: 4px solid black;
padding: 1px;
margin-right: 12px;
width: 13%;
height: 50px;
border-radius: 25px 25px 0px 0px;
background-color: white;
float: right;
position: absolute;
margin-right: 5px;
font-family: "Comic Sans",sans-serif;
right: 0px;
text-align: center;
color: #417cb8;
}
#tag2 {
margin-right: 15%;
padding: 5px;
border-bottom: 4px solid black;
width: 13%;
height: 50px;
border-radius: 25px 25px 0px 0px;
background-color: white;
position: absolute;
font-family: "Comic Sans",sans-serif;
text-align: center;
display: block;
right: 0px;
color: #417cb8;
}
#tag3 {
margin-right: 30%;
padding: 5px;
border-bottom: 4px solid black;
width: 13%;
height: 50px;
border-radius: 25px 25px 0px 0px;
background-color: white;
position: absolute;
font-family: "Comic Sans",sans-serif;
text-align: center;
display: block;
right: 0px;
color: #417cb8;
}
#tag4 {
float: left;
padding: 5px;
border-bottom: 4px solid black;
width: 10%;
height: 101px;
border-radius: 25px 0px 0px 25px;
background-color: white;
position: absolute;
font-family: "Comic Sans",sans-serif;
text-align: center;
display: block;
margin-left: 1.5%;
color: #417cb8;
padding: 1%;
}
#element {
float: left;
}
img.object {
border: 1px solid #6496c8;
background-color: white;
border-radius: 25px;
padding: 10px;
height: 101;
width: 101;
float: center;
}
<!DOCTYPE HTML>
<html>
<head>
<script src="http://code.jquery.com/jquery-1.7.2.min.js"></script>
<script src="http://code.jquery.com/ui/1.8.21/jquery-ui.min.js"></script>
<script src="jquery.ui.touch-punch.min.js"></script>
<script>
$('#element').draggable();
$( "#div1" ).droppable({
drop: function( event, ui ) {
$( this )
.addClass( "isDropped" )
.html( "Dropped!" );
}
});
</script> <script>
function allowDrop(ev, div) {
ev.preventDefault()
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id)
}
function drop(ev, div) {
ev.preventDefault()
if(div == 'div4')
{
var data = ev.dataTransfer.getData("text")
var element = document.getElementById(data)
element.parentNode.removeChild(element)
}
else if (div == 'div5') {
if(document.getElementById(div).innerHTML <= 5)
{
var data = ev.dataTransfer.getData("text")
ev.target.appendChild(document.getElementById(data))
}
}
else if (div == 'element')
{
}
else
{
if(document.getElementById(div).innerHTML <= 5)
{
var data = ev.dataTransfer.getData("text")
ev.target.appendChild(document.getElementById(data))
}
}
}
</script>
</head>
<body>
<div style="border: 1px solid black; border-radius: 30px; background-color: #6496c8;">
<h2 style="float: center; text-align: center; border-bottom: 4px solid black; width: 275px; height: 65px; border-radius: 25px 0px 0px 0px; background-color: white; margin-left: 1.5%;"><font style="text-align:center;" face="verdana" color="#417cb8" size=30>Organiser</font></h2>
<div id="tag1"><font size="7">Now</font></div><br><br><br><br>
<div id="div1" ondrop="drop(event, 'div1')" ondragover="allowDrop(event, 'div1')"></div>
<div id="tag2"><font size="7">Next</font></div><br><br><br><br>
<div id="div2" ondrop="drop(event, 'div2')" ondragover="allowDrop(event, 'div2')"></div>
<div id="tag3"><font size="7">After</font></div><br><br><br><br>
<div id="div3" ondrop="drop(event, 'div3')" ondragover="allowDrop(event, 'div3')"></div>
<br><br><br><br><br><br><br><br>
<p id="text"><font size="7">To Do</font></p>
<p id="div5" ondrop="drop(event, 'div1')" ondragover="allowDrop(event, 'div1')" overflow="Scroll">
<img class="object" src="ABC.png" draggable="true" ondragstart="drag(event)" id="drag1" width="100" height="100">
<img class="object" src="pencil.png" draggable="true" ondragstart="drag(event)" id="drag2" width="100" height="100">
<img class="object" src="recycle.png" draggable="true" ondragstart="drag(event)" id="drag3" width="100" height="100">
<img class="object" src="apple.png" draggable="true" ondragstart="drag(event)" id="drag4" width="100" height="100">
<br><br><p><div id = "tag4"><font size="10">Done</font></div>
<div id="div4" ondrop="drop(event, 'div4')" ondragover="allowDrop(event, 'div4')"><img src="https://cdn3.iconfinder.com/data/icons/tools-solid-icons-vol-2/72/59-512.png" height=100px width=100px></div><br>
</div>
</body>
</html>
When i drag and drop elements back into the starting div, they become offset, can anybody explain why please? I have tried changing tags to classes, i have tried changing drag and drop options to no avail.
You have 4 images within the <p> element. Those images are followed by line breaks <br><br> because your <p> is not properly closed. so the browser places the </p> tag right after the <br><br> instead of before like I image you meant for,
When you move the image out of the <p> and then back in, it is placed after the line break now, instead of before it. this causes the image to move to the next line.
All you need to do is place a </p> right before those <br><br> or delete the line breaks altogether.

Change text color onclick

I have a toggle button and when I click the button I want to be able to change the colors of the text from a lighter color when not selected to black when selected. Right now it is only working on one of the buttons. Attached is a fiddle of my code. https://jsfiddle.net/h2db7qLp/
function onContainerClick(event) {
if (event.classList.contains('off')) {
event.classList.remove('off');
} else {
event.classList.add('off');
}
}
.container {
background: #EFEFEF;
position: relative;
width: 126px;
height: 40px;
cursor: pointer;
border: 1px solid rgba(0, 0, 0, 0.2);
border-top: #CCC solid 1px;
border-radius: 2px 0 0 2px;
border-bottom: #EEE solid 1px;
border-right: #ddd solid 1px;
border-left: #ddd solid 1px;
border-radius: 2px 0 0 2px;
border-style: solid;
border-width: 1px;
}
.container2 {
background: #EFEFEF;
position: relative;
width: 226px;
height: 40px;
cursor: pointer;
border: 1px solid rgba(0, 0, 0, 0.2);
border-top: #CCC solid 1px;
border-radius: 2px 0 0 2px;
border-bottom: #EEE solid 1px;
border-right: #ddd solid 1px;
border-left: #ddd solid 1px;
border-radius: 2px 0 0 2px;
border-style: solid;
border-width: 1px;
}
.switch {
position: absolute;
width: 50%;
height: 100%;
background-color: #fff;
transition: all 0.15s ease;
left: 0;
z-index: 1;
}
.switch-title {
margin-bottom: 6px;
font-size: 16px;
}
.container.off {} .container.off .switch,
.container2.off .switch {
left: 50%;
background-color: #fff;
}
.container2.off .left-long,
.container.off .left-short,
.container2.on .right-long,
.container.on .right-short {
color: #aaa;
}
.label {
position: absolute;
width: 50%;
height: 100%;
text-align: center;
padding-top: 11px;
z-index: 1;
font: 16px"adiHaus", Arial, sans-serif;
font-weight: bolder;
color: #000;
}
.label.right-long {
left: 50%;
}
.label.right-short {
left: 50%;
}
<div class="switch-title">Hand:</div>
<div class="container" id="container" onclick="onContainerClick(this)">
<div class="switch" id="switch">
</div>
<div class="label left-short" onclick="onContainerClick(this)">L</div>
<div class="label right-short" onclick="onContainerClick(this)">R</div>
</div>
I think that by adding the class 'on' on change it goes well, also you don't need to call your handler on every div, just call once.
function onContainerClick(event) {
if (event.classList.contains('off')) {
event.classList.remove('off');
event.classList.add('on');
} else {
event.classList.add('off');
event.classList.remove('on');
}
}
.container {
background: #EFEFEF;
position: relative;
width: 126px;
height: 40px;
cursor: pointer;
border: 1px solid rgba(0, 0, 0, 0.2);
border-top: #CCC solid 1px;
border-radius: 2px 0 0 2px;
border-bottom: #EEE solid 1px;
border-right: #ddd solid 1px;
border-left: #ddd solid 1px;
border-radius: 2px 0 0 2px;
border-style: solid;
border-width: 1px;
}
.container2 {
background: #EFEFEF;
position: relative;
width: 226px;
height: 40px;
cursor: pointer;
border: 1px solid rgba(0, 0, 0, 0.2);
border-top: #CCC solid 1px;
border-radius: 2px 0 0 2px;
border-bottom: #EEE solid 1px;
border-right: #ddd solid 1px;
border-left: #ddd solid 1px;
border-radius: 2px 0 0 2px;
border-style: solid;
border-width: 1px;
}
.switch {
position: absolute;
width: 50%;
height: 100%;
background-color: #fff;
transition: all 0.15s ease;
left: 0;
z-index: 1;
}
.switch-title {
margin-bottom: 6px;
font-size: 16px;
}
.container.off {}
.container.off .switch,
.container2.off .switch {
left: 50%;
background-color: #fff;
}
.container2.off .left-long,
.container.off .left-short,
.container2.on .right-long,
.container.on .right-short {
color: #aaa;
}
.label {
position: absolute;
width: 50%;
height: 100%;
text-align: center;
padding-top: 11px;
z-index: 1;
font: 16px "adiHaus", Arial, sans-serif;
font-weight: bolder;
color: #000;
}
.label.right-long {
left: 50%;
}
.label.right-short {
left: 50%;
}
<div class="switch-title">Hand:</div>
<div class="container on" id="container" onclick="onContainerClick(this)">
<div class="switch" id="switch">
</div>
<div class="label left-short">L</div>
<div class="label right-short">R</div>
</div>

Removing and Adding classes with button

I'm trying to use a button to remove the class .computer-off and add .computer-on and vice versa when clicked again. I've tried quite a few approaches, but to no avail. Here's one approach:
HTML:
<div id="computer-screen" class="computer-off">
<button onclick="computerPower()" class="power-button">Power</button>
</div>
JS:
function computerPower() {
if ( $("#computer-screen").hasClass('computer-off') ) {
document.getElementById('computer-screen').removeClass('computer-off').addClass('computer-on');
} else {
document.getElementById("computer-screen").removeClass('computer-on').addClass('computer-off');
}
};
I'd suggest, given that you appear to (be trying to) use jQuery:
$('#power').on('click', function() {
$('#computer-screen').toggleClass('computer-off computer-on');
});
$('#power').on('click', function() {
$('#computer-screen').toggleClass('computer-off computer-on');
});
#computer {
width: 60%;
margin: 1em auto;
padding: 1em;
border: 1px solid darkgrey;
overflow: hidden;
border-radius: 0.4em 0.4em 0 0;
}
#computer-screen {
border-radius: 0.5em;
height: 15em;
}
.computer-off {
background-color: #000;
}
.computer-on {
background-color: #060;
box-shadow: 0 0 1.0em #060;
}
#power {
cursor: pointer;
position: relative;
float: right;
width: 2em;
height: 2em;
line-height: 2em;
border-radius: 50%;
border: 1px solid #aaa;
margin-top: 0.3em;
}
.computer-on + #power {
box-shadow: inset 0 1px 3px #666;
}
#power::before {
content: '';
position: absolute;
top: 0.3em;
bottom: 0.75em;
left: 0.9em;
right: 0.9em;
background-color: #ccc;
}
#power::after {
content: '';
height: 1em;
width: 1em;
position: absolute;
border: 0.2em solid #ccc;
border-top-color: transparent;
border-radius: 50%;
bottom: 0.3em;
left: 0.3em;
}
#computer-screen.computer-on + #power::before {
background-color: #0f0;
}
#computer-screen.computer-on + #power::after {
border-color: #0f0;
border-top-color: transparent;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="computer">
<div id="computer-screen" class="computer-off"></div>
<div id="power"></div>
</div>
Or, in plain JavaScript:
document.getElementById('power').addEventListener('click', function() {
var screen = document.getElementById('computer-screen');
screen.classList.toggle('computer-off');
screen.classList.toggle('computer-on');
});
document.getElementById('power').addEventListener('click', function() {
var screen = document.getElementById('computer-screen');
screen.classList.toggle('computer-off');
screen.classList.toggle('computer-on');
});
#computer {
width: 60%;
margin: 1em auto;
padding: 1em;
border: 1px solid darkgrey;
overflow: hidden;
border-radius: 0.4em 0.4em 0 0;
}
#computer-screen {
border-radius: 0.5em;
height: 15em;
}
.computer-off {
background-color: #000;
}
.computer-on {
background-color: #060;
box-shadow: 0 0 1.0em #060;
}
#power {
cursor: pointer;
position: relative;
float: right;
width: 2em;
height: 2em;
line-height: 2em;
border-radius: 50%;
border: 1px solid #aaa;
margin-top: 0.3em;
}
.computer-on + #power {
box-shadow: inset 0 1px 3px #666;
}
#power::before {
content: '';
position: absolute;
top: 0.3em;
bottom: 0.75em;
left: 0.9em;
right: 0.9em;
background-color: #ccc;
}
#power::after {
content: '';
height: 1em;
width: 1em;
position: absolute;
border: 0.2em solid #ccc;
border-top-color: transparent;
border-radius: 50%;
bottom: 0.3em;
left: 0.3em;
}
#computer-screen.computer-on + #power::before {
background-color: #0f0;
}
#computer-screen.computer-on + #power::after {
border-color: #0f0;
border-top-color: transparent;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="computer">
<div id="computer-screen" class="computer-off"></div>
<div id="power"></div>
</div>
References:
JavaScript:
document.querySelector().
Element.classList.
jQuery:
toggleClass().

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