Develop Reference

Scale multiple divs on click

Okay, so I'm basically trying to achieve that if you click div1, the width of this specific div changes to 50%, and all the other divs their widths change to, let say 2%. (see jsfiddle for more clarity)
I've tried to do this by giving them a separate class, so the div being click is Online, the rest of Offline. I thought it might work if I then said something like; if .. hasClass .. do this.
In the end, I've managed to indeed scale the div on click to 50%, but sadly enough I made quite a mess of the rest. I'll include the code, and I hope someone can explain to me how I should proceed. I also thought of an Array but did not know how to move forward with this.
https://jsfiddle.net/6cjmshrq/
1
$(".sliding-panel1").click(function(){
$(".sliding-pane2").addClass("Active");
$(".sliding-pane2").addClass("Offline");
$(".sliding-pane3").addClass("Offline");
$(".sliding-pane4").addClass("Offline");
$(".sliding-pane5").addClass("Offline");
$(".sliding-pane6").addClass("Offline");
$(".sliding-pane7").addClass("Offline");
$(".sliding-pane8").addClass("Offline");
$(".sliding-pane9").addClass("Offline");
$(".sliding-pane10").addClass("Offline");
$(".sliding-pane11").addClass("Offline");
});
2
$(".sliding-panel1").click(function(){
if ( $(this).hasClass("Active") ) {
$(this).animate({
width: '9%',
height: '100%'
});
} else {
$(this).animate({
width: '50%',
height: '100%'
});
}
$(this).toggleClass("Active");
});
3
$(function(){
$('.sliding-panel1').click(function(){
$(".container").children().each( function(){
if (!$(this).hasClass('Active') ){
$(this).animate({
width: '9%'
})
else {
$(this).animate({
width: '50%'
})
};
4
var elements = document.getElementsByClassName('Offline');
for (var i = 0; i < elements.length; i++) {
elements[i].style.widht='2%';
elements[i].style.height='100%';
}
5
$(".sliding-panel1").click(function(){
$("#selectedwhip").addClass("active");
});
$(function() {
if ($("#selectedwhip").hasClass("active")) {
console.log('active');
}
else {
console.log('unactive');
}
});

You can minimize the css your css isnt dry , just use a single default class for the default state and add a class with name .Active in css with the transition property and you dont have to write that much jquery code too to control the width and height, instead you add or remove the .Active class see a demo below if that is how you want it
$(".container div").on('click', function(e) {
var $this = $(this);
$(".container div").filter(function() {
return !$(this).is($this);
}).removeClass('Active').addClass('Offline');
$this.removeClass('Offline').addClass('Active');
});
*,
*:before,
*:after {
margin: 0;
box-sizing: border-box;
}
body,
html {
height: 100%;
}
.container {
position: relative;
width: 100%;
height: 100%;
background-color: grey;
}
.panels {
width: 9%;
float: left;
height: 100vh;
background-color: red;
border: 1px black solid;
}
.Active {
width: 50%;
transition: 1s linear;
}
.Offline {
width: 5%;
transition: 1s linear;
}
<div class="container">
<div class="panels">1
</div>
<div class="panels">
</div>
<div class="panels">
</div>
<div class="panels">
</div>
<div class="panels">
</div>
<div class="panels">
</div>
<div class="panels">
</div>
<div class="panels">
</div>
<div class="panels">
</div>
<div class="panels">
</div>
<div class="panels">
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>

Maybe this is:
$("[class^='sliding-panel']" ).click(function(){ //selector part of class name
$("[class^='sliding-panel']" ).addClass("Offline").removeClass("Active"); //for all
$(this).addClass("Active").removeClass("Offline"); //for this element
});

Slight adjustment of Muhammad Omer Aslam's answer to account for shrinking the un-clicked divs instead of pushing them off screen (if I'm seeing it right):
script:
$(".container div").on('click', function() {
$(".container div").removeClass('Active');
$(".container div").addClass('Inactive');
$(this).removeClass('Inactive');
$(this).addClass('Active');
});
append to his css:
.Inactive {
width: 2%;
transition: 1s linear;
}

Div flickers on hover

I have read a lot of the questions on here but can't find one that fixes this. I have programmed a div to follow my cursor. I only want it to appear when the cursor is over #backgroundiv. I have got it working but it sometimes randomly flickers on chrome and disappears entirely on firefox. Even more randomly is it sometimes appears to work and then starts flickering. I have tried a variety of things from hover to mouseenter/mouseover but nothing seems to work.
What I want is for #newdot to appear when the cursor is over #backgroundiv and then follow the cursor around the div. Any help would be much appreciated.
//hide dot when leaves the page
$(document).ready(function() {
$("#backgroundiv").hover(function() {
$("#newdot").removeClass("hide");
}, function() {
$("#newdot").addClass("hide");
});
});
//div follows the cursor
$("#backgroundiv").on('mousemove', function(e) {
//below centres the div
var newdotwidth = $("#newdot").width() / 2;
$('#newdot').css({
left: e.pageX - newdotwidth,
top: e.pageY - newdotwidth
});
});
//tried below too but it doesn't work
/*$(document).ready(function(){
$("#backgroundiv").mouseenter(function(){
$("#newdot").removeClass("hide");
});
$("#backgroundiv").mouseout(function(){
$("#newdot").addClass("hide");
});
}); */
#backgroundiv {
width: 400px;
height: 400px;
background-color: blue;
z-index: 1;
}
#newdot {
width: 40px;
height: 40px;
background-color: red;
position: absolute;
z-index: 2;
}
.hide {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="newdot"></div>
<div id="backgroundiv"></div>

There is not issue but a logical behavior, when you hover on the blue div you trigger mouseenter so you remove the class and you see the red one BUT when you hover the red one you trigger mouseleave from the blue div thus you add the class and you hide the red one. Now the red is hidden you trigger again the mouseenter on the blue div and you remove the class again and the red div is shown, and so on ... this is the flicker.
To avoid this you can consider the hover on the red box to make the red box appear on its hover when you lose the hover from the blue one.
$(document).ready(function() {
$("#backgroundiv").hover(function() {
$("#newdot").removeClass("hide");
}, function() {
$("#newdot").addClass("hide");
});
});
//div follows the cursor
$("#backgroundiv").on('mousemove', function(e) {
//below centres the div
var newdotwidth = $("#newdot").width() / 2;
$('#newdot').css({
left: e.pageX - newdotwidth,
top: e.pageY - newdotwidth
});
});
#backgroundiv {
width: 400px;
height: 400px;
background-color: blue;
z-index: 1;
}
#newdot {
width: 40px;
height: 40px;
background-color: red;
position: absolute;
z-index: 2;
}
.hide {
display: none;
}
/* Added this code */
#newdot:hover {
display: block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="newdot">
</div>
<div id="backgroundiv">
</div>

Hover effect to click

Heres basically what the code looks like, it should run if pasted in sublime, what i'm trying to do is get the div to show when the page is loaded and then hide on scroll but when the button is clicked it should show wherever you are on the page. The codes a bit rough but its just a test page
$(window).scroll(function() {
if ($(this).scrollTop()>0)
{
$('.fade').fadeOut();
}
else
{
$('.fade').fadeIn();
}
});
$(function(){
$(".box").click(function(){
$(this).find(".fade").fadeIn();
}
,function(){
$(this).find(".fade").fadeOut();
}
);
});
window.onscroll = function()
{
var left = document.getElementById("left");
if (left.scrollTop < 60 || self.pageYOffset < 60) {
left.style.position = 'fixed';
left.style.top = '60px';
} else if (left.scrollTop > 60 || self.pageYOffset > 60) {
left.style.position = 'absolute';
left.style.margin-top = '200px';
}
}
body {
height: 2000px;
}
.fade {
height: 300px;
width: 300px;
background-color: #d15757;
color: #fff;
padding: 10px;
}
.box{color: red;}
#left{
float: left;
width: 20%;
height: 200px;
background: yellow;
position: fixed;
top: 0;
left: 150px;
}
<div class="box">
<div class="fade" id="left">
show div / hide on click (NOT HOVER)
</div>
<br><br><br><br><br><br><br><br><br><br><br><br>
<div style="margin-left: 90% !important;">
<button style=" position: fixed;
/* margin-right: -40% !important; */
margin-top: 0%;
background-color: red;
color: #fff;
padding: 10px 10px;
display: block;
width: 54%;
float: right;
top: 0;">show div again</button></div>
</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.2/jquery.min.js'>

This could work. If box is clicked, check if .fade element is already visible. If it is, then hide it, if not, show it.
$(".box").click(function(){
if($(".fade", this).is(":visible"))
{
$(".fade", this).fadeOut();
}
else
{
$(".fade", this).fadeIn();
}
});

You can use toggle since you need to alternate fadeIn and fadeOut on click
Replace hover
$(function(){
$(".box").hover(function(){
$(this).find(".fade").fadeIn();
},function(){
$(this).find(".fade").fadeOut();
}
);
});
With toggle
$(function(){
$(".box").toggle(function(){
$(this).find(".fade").fadeIn();
},function(){
$(this).find(".fade").fadeOut();
}
);
});

a quick look at the doc would have saved you headaches: http://api.jquery.com/click

It`s not working for reason - you create buttons dynamically because of that you need to call them with .live() method if you use jquery 1.7
but this method is deprecated (you can see the list of all deprecated method here) in newer version. if you want to use jquery 1.10 or above you need to call your buttons in this way:
$(document).on('click', 'selector', function(){
// Your Code
});
Your code will be something like this.
$(document).on('click', '.box', function(){
$(this).find(".fade").fadeIn();
},function(){
$(this).find(".fade").fadeOut();
});

How to "dim" certain area in a webpage

I have a page which i need to dim a certain area (div) instead of the entire page. How can I achieve this?
I have googled some answer but all of them is about dimming the whole page. Below is the sample code that I got but it dimmed the entire page.
<div id="dimmer"></div>
#dimmer
{
background:#000;
opacity:0.5;
position:fixed; /* important to use fixed, not absolute */
top:0;
left:0;
width:100%;
height:100%;
display:none;
z-index:9999; /* may not be necessary */
}

It covered the whole page because you set the width and height to 100%. If you were to make it 100px or 50%, that would work, but if you set it to 100%, it will cover 100% of the page.

.area-to-dim {
position: relative;
}
.dimmer {
position: absolute;
width: 100%;
height: 100%;
top: 0;
left: 0;
background-color: rgba(0,0,0,0.5);
}
HTML
<div class="area-to-dim">
<div class="dimmer"></div>
</div>

Two ways, one really simple but I'm not 100% sure this is what you wanted.
First way, use CSS
.genericClassGivenToDivs, #idOfDiv {
background:#fff;
}
/* on mouse over, change the background colour */
.genericClassGivenToDivs:hover, #idOfDiv:hover {
background:#aaa;
}
The second way is more complex. Basically, reposition a div using javascript on mouse over. This requires some CSS and javascript. The following could be a lot cleaner with some work.
<html>
<head>
<style>
body {
margin:1em;
background:#ddd;
}
#contain {
margin:auto;
width:100%;
max-width:720px;
text-align:center;
}
#row1, #row2, #row3 {
width:100%;
height:48px;
line-height:48px;
color:#000;
background:#fff;
}
#row2 {
background:#eee;
}
#dim {
position:absolute;
top:0px;
left:0px;
width:100%;
height:100%;
background:rgba(0,0,0,0.5);
display:none;
}
</style>
</head>
<body>
<div id="contain">
<div id="row1">Row 1</div>
<div id="row2">Row 2</div>
<div id="row3">Row 3</div>
</div>
<div id="dim"></div>
<script>
var dimEl = document.getElementById('dim');
function over() {
//console.log('over:['+ this.id +']');
dimEl.style.top = this.offsetTop +'px';
dimEl.style.left = this.offsetLeft +'px';
dimEl.style.height = this.offsetHeight +'px';
dimEl.style.width = this.offsetWidth +'px';
dimEl.style.display = 'block';
}
window.onload = function() {
var list = ['row1', 'row2', 'row3'];
var e;
for(x in list) {
e = document.getElementById(list[x]);
if (e) {
e.onmouseover = over;
}
}
}
</script>
</body>
</html>

Not entirely sure what "dimming a certain area" means, but I recently created a solution that might be applicable in some extent.
I had a div with a background image and some overlaid text, and the background (but not the text) should darken slightly on mouse over.
I solved it by having two containers and a textfield, so that the outermost div had the background image, the inner div expanded to 100% height and width and had a transparent black solid-color background, and then there was some text in that div.
Then, simply, on hover, I change the inner div background-color from rgba(0, 0, 0, 0) to rgba(0, 0, 0, .3), dimming the background image.
If this sounds applicable, see this jsFiddle

Why the display is none?
Check this?
#dimmer {
background: #111;
top: 0;
left: 0;
width: 100px;
height: 100px;
z-index: 9999;
/* may not be necessary */
}
#dimmer:hover {
background: #000;
opacity: 0.5;
transition: opacity 1s ease;
cursor: pointer;
}
<div id="dimmer">ok</div>

JavaScript alert box with timer

I want to display the alert box but for a certain interval. Is it possible in JavaScript?

If you want an alert to appear after a certain about time, you can use this code:
setTimeout(function() { alert("my message"); }, time);
If you want an alert to appear and disappear after a specified interval has passed, then you're out of luck. When an alert has fired, the browser stops processing the javascript code until the user clicks "ok". This happens again when a confirm or prompt is shown.
If you want the appear/disappear behavior, then I would recommend using something like jQueryUI's dialog widget. Here's a quick example on how you might use it to achieve that behavior.
var dialog = $(foo).dialog('open');
setTimeout(function() { dialog.dialog('close'); }, time);

May be it's too late but the following code works fine
document.getElementById('alrt').innerHTML='<b>Please wait, Your download will start soon!!!</b>';
setTimeout(function() {document.getElementById('alrt').innerHTML='';},5000);
<div id='alrt' style="fontWeight = 'bold'"></div>

setTimeout( function ( ) { alert( "moo" ); }, 10000 ); //displays msg in 10 seconds

In short, the answer is no. Once you show an alert, confirm, or prompt the script no longer has control until the user returns control by clicking one of the buttons.
To do what you want, you will want to use DOM elements like a div and show, then hide it after a specified time. If you need to be modal (takes over the page, allowing no further action) you will have to do additional work.
You could of course use one of the many "dialog" libraries out there. One that comes to mind right away is the jQuery UI Dialog widget

I finished my time alert with a unwanted effect.... Browsers add stuff to windows. My script is an aptated one and I will show after the following text.
I found a CSS script for popups, which doesn't have unwanted browser stuff. This was written by Prakash:- https://codepen.io/imprakash/pen/GgNMXO. This script I will show after the following text.
This CSS script above looks professional and is alot more tidy. This button could be a clickable company logo image. By suppressing this button/image from running a function, this means you can run this function from inside javascript or call it with CSS, without it being run by clicking it.
This popup alert stays inside the window that popped it up. So if you are a multi-tasker you won't have trouble knowing what alert goes with what window.
The statements above are valid ones.... (Please allow).
How these are achieved will be down to experimentation, as my knowledge of CSS is limited at the moment, but I learn fast.
CSS menus/DHTML use mouseover(valid statement).
I have a CSS menu script of my own which is adapted from 'Javascript for dummies' that pops up a menu alert. This works, but text size is limited. This hides under the top window banner. This could be set to be timed alert. This isn't great, but I will show this after the following text.
The Prakash script above I feel could be the answer if you can adapt it.
Scripts that follow:- My adapted timed window alert, Prakash's CSS popup script, my timed menu alert.
1.
<html>
<head>
<title></title>
<script language="JavaScript">
// Variables
leftposition=screen.width-350
strfiller0='<table border="1" cellspacing="0" width="98%"><tr><td><br>'+'Alert: '+'<br><hr width="98%"><br>'
strfiller1=' This alert is a timed one.'+'<br><br><br></td></tr></table>'
temp=strfiller0+strfiller1
// Javascript
// This code belongs to Stephen Mayes Date: 25/07/2016 time:8:32 am
function preview(){
preWindow= open("", "preWindow","status=no,toolbar=no,menubar=yes,width=350,height=180,left="+leftposition+",top=0");
preWindow.document.open();
preWindow.document.write(temp);
preWindow.document.close();
setTimeout(function(){preWindow.close()},4000);
}
</script>
</head>
<body>
<input type="button" value=" Open " onclick="preview()">
</body>
</html>
2.
<style>
body {
font-family: Arial, sans-serif;
background: url(http://www.shukatsu-note.com/wp-content/uploads/2014/12/computer-564136_1280.jpg) no-repeat;
background-size: cover;
height: 100vh;
}
h1 {
text-align: center;
font-family: Tahoma, Arial, sans-serif;
color: #06D85F;
margin: 80px 0;
}
.box {
width: 40%;
margin: 0 auto;
background: rgba(255,255,255,0.2);
padding: 35px;
border: 2px solid #fff;
border-radius: 20px/50px;
background-clip: padding-box;
text-align: center;
}
.button {
font-size: 1em;
padding: 10px;
color: #fff;
border: 2px solid #06D85F;
border-radius: 20px/50px;
text-decoration: none;
cursor: pointer;
transition: all 0.3s ease-out;
}
.button:hover {
background: #06D85F;
}
.overlay {
position: fixed;
top: 0;
bottom: 0;
left: 0;
right: 0;
background: rgba(0, 0, 0, 0.7);
transition: opacity 500ms;
visibility: hidden;
opacity: 0;
}
.overlay:target {
visibility: visible;
opacity: 1;
}
.popup {
margin: 70px auto;
padding: 20px;
background: #fff;
border-radius: 5px;
width: 30%;
position: relative;
transition: all 5s ease-in-out;
}
.popup h2 {
margin-top: 0;
color: #333;
font-family: Tahoma, Arial, sans-serif;
}
.popup .close {
position: absolute;
top: 20px;
right: 30px;
transition: all 200ms;
font-size: 30px;
font-weight: bold;
text-decoration: none;
color: #333;
}
.popup .close:hover {
color: #06D85F;
}
.popup .content {
max-height: 30%;
overflow: auto;
}
#media screen and (max-width: 700px){
.box{
width: 70%;
}
.popup{
width: 70%;
}
}
</style>
<script>
// written by Prakash:- https://codepen.io/imprakash/pen/GgNMXO
</script>
<body>
<h1>Popup/Modal Windows without JavaScript</h1>
<div class="box">
<a class="button" href="#popup1">Let me Pop up</a>
</div>
<div id="popup1" class="overlay">
<div class="popup">
<h2>Here i am</h2>
<a class="close" href="#">×</a>
<div class="content">
Thank to pop me out of that button, but now i'm done so you can close this window.
</div>
</div>
</div>
</body>
3.
<HTML>
<HEAD>
<TITLE>Using DHTML to Create Sliding Menus (From JavaScript For Dummies, 4th Edition)</TITLE>
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
<!-- Hide from older browsers
function displayMenu(currentPosition,nextPosition) {
// Get the menu object located at the currentPosition on the screen
var whichMenu = document.getElementById(currentPosition).style;
if (displayMenu.arguments.length == 1) {
// Only one argument was sent in, so we need to
// figure out the value for "nextPosition"
if (parseInt(whichMenu.top) == -5) {
// Only two values are possible: one for mouseover
// (-5) and one for mouseout (-90). So we want
// to toggle from the existing position to the
// other position: i.e., if the position is -5,
// set nextPosition to -90...
nextPosition = -90;
}
else {
// Otherwise, set nextPosition to -5
nextPosition = -5;
}
}
// Redisplay the menu using the value of "nextPosition"
whichMenu.top = nextPosition + "px";
}
// End hiding-->
</SCRIPT>
<STYLE TYPE="text/css">
<!--
.menu {position:absolute; font:10px arial, helvetica, sans-serif; background-color:#ffffcc; layer-background-color:#ffffcc; top:-90px}
#resMenu {right:10px; width:-130px}
A {text-decoration:none; color:#000000}
A:hover {background-color:pink; color:blue}
-->
</STYLE>
</HEAD>
<BODY BGCOLOR="white">
<div id="resMenu" class="menu" onmouseover="displayMenu('resMenu',-5)" onmouseout="displayMenu('resMenu',-90)"><br />
Alert:<br>
<br>
You pushed that button again... Didn't yeah? <br>
<br>
<br>
<br>
</div>
ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
<input type="button" value="Wake that alert up" onclick="displayMenu('resMenu',-5)">
</BODY>
</HTML>

Pure HTML + CSS 5 seconds alert box using the details element toggling.
details > p {
padding: 1rem;
margin: 0
}
details[open] {
visibility: hidden;
position: fixed;
width: 33%;
transform: translate(calc(50vw - 50%), calc(50vh - 50%));
transform-origin: center center;
outline: 10000px #000000d4 solid;
animation: alertBox 5s;
border: 15px yellow solid
}
details[open] summary::after {
content: '❌';
float: right
}
#keyframes alertBox {
0% { visibility: unset}
100% { visibility: hidden }
}
<details>
<summary>Show the box 5s</summary>
<p>HTML and CSS popup with 5s tempo.</p>
<p><b>Powered by HTML</b></p>
</details>
Nb: the visibility stay hidden at closure, haven't found a way to restore it from CSS, we might have to use js to toggle a class to show it again. If someone find a way with only CSS, please edit this post!!

If you are looking for an alert that dissapears after an interval you could try the jQuery UI Dialog widget.

tooltips can be used as alerts. These can be timed to appear and disappear.
CSS can be used to create tooltips and menus. More info on this can be found in 'Javascript for Dummies'. Sorry about the label of this book... Not infuring anything.
Reading other peoples answers here, I realized the answer to my own thoughts/questions. SetTimeOut could be applied to tooltips. Javascript could trigger them.

by using this code you can set the timer on the alert box , and it will pop up after 10 seconds.
setTimeout(function(){
alert("after 10 sec i will start");
},10000);

You can now use the HTMLDialogElement.
In this example a dialog is created when you click the button, and a timeout function is created to close it:
async function showMessage(message) {
const dialog = document.createElement("dialog");
document.body.appendChild(dialog);
dialog.innerText = message;
dialog.show();
setTimeout(function () {
dialog.close();
}, 1000);
}
<button class="btn" onclick="showMessage('This is my message')">click me!</button>
If you want you can test it on codepen.

function alertWithTimeout(title,message,timeout){
var dialog = $("<div id='dialog-confirm' title='"+title+"'>"+message+"</div>").dialog();
setTimeout(function() { dialog.dialog('close'); }, timeout);
}
alertWithTimeout("Error","This is the message" ,5000);