We Keep Coding

Scroll smoothly by 100px horizontally

Heyjo,
problem: I am looking for a javascript or jQuery code since a week to get an implemented scrollbutton on my website working. The moment I fail is when the button should work multiple times: his task is not so scroll to a dedicated element, it should scroll left by, for instance, 100px. Furthermore the scrolling is supposed to happen smoothly (in other words, animated) in a proper section.
what I tried: til now I tried to fulfill this task with $('#idofsection').animate({scrollLeft: 100}, 800) but obviously it didn't work. The Problem was, one couldn't use it multiple times, it just scrolled to a position in my section. Afterwards I used javascript's scrollBy(100, 0) or scrollLeft += 100px, but unfortunately didn't got it to scroll smoothly.
I hope someone can help me because I spent so much time on this issue without finding a solution. Thanks a lot, Sven

You can use scrollBy(100, 0) just like you tried and add this css property to the viewport where you want to scroll:
scroll-behavior: smooth;
.window{
width: 200px;
height: 100px;
border: 1px red solid;
overflow: hidden;
scroll-behavior: smooth;
}
.container{
width: 1000px;
height: 200px;
}
.buttons{
width: 200px;
display: flex;
flex-direction: row;
justify-content: space-between;
}
<div id="window" class="window">
<div class="container">
fjsdlf jslkd flsakj flksad jflkjsa dlfj slakd jflskad flksdaj lfk sadlkfj asldk fslkad fjlkasd flksa jdlf jsadlkfj slkda jflksadj flksa jdlkfj sadlk jflksadj flksjadflksadj flksdaj flksdaj flksdaflksjdflk sjdalkfj skdal fjlksadj flksa fklsjadfklj sadklfj salkdjf lksadj flksjad lfkj sadlkf jslakdjf lksdaj flkasj flkjsa dlfskal flsa jdas lkfjskad fj
</div>
</div>
<div class="buttons">
<button onclick="document.getElementById('window').scrollBy(-100,0)">
<-
</button>
<button onclick="document.getElementById('window').scrollBy(100,0)">
->
</button>
</div>
Solution also here: JSFiddle

So use the animation properties += to adjust it from current position.
$("#next").click(function(){
$('#foo').stop().animate({scrollLeft: "+=100"}, 800);
return false;
});
div {
width: 200px;
overflow: auto;
padding: 1em;
border: 1px solid black;
}
div p {
width: 1000px;
border: 2px dashed #000;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="foo">
<p>TEST</p>
</div>
<button id="next">Next</button>

Scroll to bottom of hidden div?

I have a simple chat JS application, with a div.chat-holder holding all chat messages within a pane on the overall window. I set height of '.chat-holder so it remains fixed in size, and allows for scrolling of all the messages.
<style>
.chat-holder {
height: 30px;
overflow-y: scroll;
}
</style>
<div class="pane">
<div class="chat-holder">
<div class="chat-item">
first msg
</div>
<div class="chat-item">
second msg
</div>
....
<div class="chat-item">
last msg
</div>
</div>
</div>
On page load, I scroll to the bottom by setting the scrollTop of the holder:
var $holder = $('.chat-holder');
$holder.scrollTop($holder[0].scrollHeight);
and this works fine.
Problem occurs when I start with div.pane set to display:none. Ideally, I look to have a separate event to "show/hide" the chat pane, and start with the pane hidden.
When the parent pane is hidden, the .chat-holder scrollHeight is 0, so on load, the hidden pane won't be scrolled to the bottom. Which means when the pane is displayed, the chats are not scrolled to the most recent chats. You can see this in the following snippet: with .pane initially not displayed, scroll isn't set. If you set .pane to start displayed, then scroll works fine.
Is there anyway to "scroll to the bottom" while parent is hidden? (Yes, I know I could do this by detecting when the chat-holder is exposed & then scroll to the bottom, but I'm looking to do it on load.)
$(function() {
var $holder = $('.chat-holder');
$holder.scrollTop($holder[0].scrollHeight);
$('button').click(function() {
$('.pane').toggleClass('active');
});
});
.chat-holder {
height: 30px;
overflow-y: scroll;
border: thin solid black;
}
.chat-item {
font-size: 20px;
}
.pane {
display: none;
}
.pane.active {
display: block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="pane">
<div class="chat-holder">
<div class="chat-item">first msg</div>
<div class="chat-item">second msg</div>
<div class="chat-item">last msg</div>
</div>
</div>
<button>Toggle pane</button>

You can get creative and use opacity or visibility rules instead of display: none:
$(function() {
var $holder = $('.chat-holder');
$holder.scrollTop($holder[0].scrollHeight);
$('button').click(function() {
$('.pane').toggleClass('active');
});
});
.chat-holder {
height: 30px;
overflow-y: scroll;
border: thin solid black;
}
.chat-item {
font-size: 20px;
}
.pane {
opacity: 0;
position: absolute;
z-index: 1;
}
.pane.active {
opacity: 1;
position: relative;
}
button {
z-index: 2;
position: relative;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="pane">
<div class="chat-holder">
<div class="chat-item">first msg</div>
<div class="chat-item">second msg</div>
<div class="chat-item">last msg</div>
</div>
</div>
<button>Toggle pane</button>

JQuery Hide/Show on Scroll down

I'm new to jquery. I'm trying to write a script that will hide the div "box" and all children. When the user scrolls to the bottom of the page, the div "box" and all children display. For time's sake, we'll say the children are "chamber1", "chamber2" and "chamber 3".
when I hide "box", it only removes that div.
$(document).ready(function() {
$("#box").hide();
});
Apologies for lack of code, but I'm having trouble understanding this lesson and I can't find an exact example of what I'm trying to do through my internet searches.
Thank you!

If you to hide the box when you reach the bottom of the page, you javascript should be as follows:
JAVASCRIPT:
$(document).ready(function() {
$(document).on("scroll", function(){
if ( window.scrollMaxY == window.scrollY ) {
$("#box").hide();
}
})
});
HTML:
<div id="box">
<div>Chamber 1</div>
<div>Chamber 2</div>
<div>Chamber 3</div>
</div>

You should make sure that the div has id "box". If you're working with a div of class "box" then you would use:
$(document).ready(function() {
$(".box").hide();
});

I think this might help you and would be better to understand. A good explantion is given below here with demo.
$(window).scroll(function() {
if ($(window).scrollTop() + $(window).outerHeight() == $(document).outerHeight()) {
//Script for activity on reaching bottom of document
$("#box").fadeOut();
} else // optional
{
$("#box").fadeIn();
}
});
body {
margin: 0px;
width: 100%;
}
.container {
position: relative;
height: 900px;
width: 100%;
background: #fee;
}
#box {
position: fixed;
top: 50px;
left: 0px;
background: lightblue;
height: auto;
padding: 15px;
overflow: hidden;
max-width: 250px;
width: 210px;
}
#box > div {
margin: 5px;
background: #F33636;
padding: 10px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div class="container">
</div>
<div id="box">
Box
<hr>
<div class="chamber1">
Chamber 1
</div>
<div class="chamber2">
Chamber 2
</div>
</div>
JSFiddle
You can play around with Fiddle Link.

Sliding a <div> from the bottom

I am trying to create a keypad which can slide up from the bottom using the jQuery animate. The keypad will be first hidden at the bottom of the page, and it will slide up only when I press the button. Below is the code:
$("#keypad-toggle").click(function(e) {
e.preventDefault();
if ($("#qnumbers").hasClass("toggled")) {
$("#qnumbers").animate({
"height": "390px"
}).removeClass("toggled");
$("#num").css("display", "none");
} else {
$("#qnumbers").animate({
"height": "250px"
}).addClass("toggled");
$("#num").css("display", "inline");
}
});
#qnumbers {
background-color: #3C4050;
height: 390px;
overflow: auto;
}
#keypad {
height: 30px;
background-color: springgreen;
text-align: center;
}
#numpad {
background-color: springgreen;
}
#screen {
border: 2px solid black;
height: 140px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<div id="qnumbers" class="container-fluid">
<div id="servenumber"></div>
</div>
<div id="keypad" class="container-fluid"><span class="glyphicon glyphicon-th"></span> Number Pad
</div>
<div id="numpad" class="container-fluid">
<div id="num" style="display:none;">
<div id="screen">1234567890</div>
</div>
</div>
JSFIDDLE
However, I have found out that there is something not right with the keypad when it slides down. My keypad will disappear first and it's background will become white before the sliding down animation occurs. What do I have to change so that the keypad will not disappear when sliding down?

$("#num").css("display", "none");
This code runs while animating. To run codes after animation done, you can attach callback function like this.
$("#qnumbers").animate({"height": "390px"},function(){
$("#num").css("display", "none");
}).removeClass("toggled");

Please see my fiddle here.
I edited your open toggle code so that it will show after the toggle using a callback on the animation:
if ($("#qnumbers").hasClass("toggled")) {
$("#qnumbers").animate({
"height": "390px"
}, function() { /* added callback for animation */
$("#num").hide();
}).removeClass("toggled");
}

you could adjust the height of the numpad element instead of hiding its contents, this way your keypad will slide in and out smoothly. also you would like to set the box sizing of your "screen" to border-box if you plan on having the border fully visible without too many height adjustments:
$("#keypad-toggle").click(function(e) {
e.preventDefault();
if ($("#qnumbers").hasClass("toggled")) {
$("#qnumbers").animate({
"height": "390px"
}).removeClass("toggled");
$("#numpad").animate({
"height": "0"
});
} else {
$("#qnumbers").animate({
"height": "250px"
}).addClass("toggled");
$("#numpad").animate({
"height": "140px"
});
}
});
#qnumbers {
background-color: #3C4050;
height: 390px;
overflow: auto;
}
#keypad {
height: 30px;
background-color: springgreen;
text-align: center;
}
#numpad {
background-color: springgreen;
overflow: hidden;
height: 0;
}
#screen {
border: 2px solid black;
height: 140px;
box-sizing: border-box;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<div id="qnumbers" class="container-fluid">
<div id="servenumber"></div>
</div>
<div id="keypad" class="container-fluid"><span class="glyphicon glyphicon-th"></span> Number Pad
</div>
<div id="numpad" class="container-fluid">
<div id="num">
<div id="screen">1234567890</div>
</div>
</div>
here is a fixed Fiddle

Auto resize height CSS

I have html code like this
<div id="wrapper">
<div id="collapse"></div>
<div id="content"></div>
</div>
the css code
#wrapper {
width:100%;
height: 100%;
}
#collapse {
width:100%;
height: 30%;
}
#content {
width:100%;
height: 70%;
}
what i want to ask is how to make the #content height fit the #wrapper when the #collapse is hidden (assuming there is a js script that make the #collapse show and hidden) ?

Try this:
HTML code:
<div id="main">
<div id="Example">Hello</div>
<button id="Toggle">Toggle</button>
<div id="body">This is Body!!!</div>
</div>
JS code:
$('#Toggle').on('click', function() {
$('#Example').slideToggle({
duration: 1000,
easing: 'easeOutCubic'
});
});
CSS code:
#Example {
height: 100px;
background: #cc0000;
}
#main{ height:500px;
background-color:yellow;}
#body{ height: 100%;
background-color:blue;}
you can remove button and customize this code.
see this DEMO

You can do this with jQuery .
See the example
[http://jsfiddle.net/atinder123/6hq8h/][1]
[1]: http://jsfiddle.net/atinder123/6hq8h/

in the same JS that hides the collapse element you add
document.getElementById('content').style.height = '100%';
and of course in reverse when you show collapse again