I want to change top position of class bbb after 100 ms, but it took out that .css(top) does not work.
Please help.
<!DOCTYPE html>
<html>
<head>
<script src="jquery-3.2.1.min.js"></script>
</head>
<body>
<div class="ddd"><div class='bbb'>Bobobo</div></div>
</body>
<script>
$(function myFunction() {
setInterval(alertFunc, 100);
});
function alertFunc() {
var b = $('.bbb').first();
b.css('top', 100 + 'px');
}
</script>
</html>
You should use setTimeout() instead of setInterval() this way alertFun() will only run once.
let alertFunc = function() {
$('.bbb').css('top', 100 + 'px');
}
setTimeout(alertFunc, 100);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="ddd">
<div class='bbb'>Bobobo</div>
</div>
Just like #jhpratt mentioned. You need to add position:relative to the .bbb class.
See below.
$(function myFunction() {
setTimeout(alertFunc, 500);
});
function alertFunc() {
var b = $('.bbb').first();
b.css('top', 100 + 'px');
}
.bbb {
position: relative;
border: 1px solid red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div class="ddd">
<div class='bbb'>Bobobo</div>
</div>
As others have already said, if you want to use the top attribute you need to give
position:relative;
to the element. This way the element will be set relative to his position and this could be a little tricky. By the way i usually prefer to make a container box relative ad put the positionable element absolute in it, so it will be displayed relative to his container:
.container{
position:relative;
}
.element{
position:absolute;
}
This is the html:
<div class="container">
<div class="element"></div>
</div>
Related
Hello i have a problem with my website.
I want to make a JavaScript function which scrolls down to an object with the id #important. Usually i just modify the link to page.html#important. but because the object is at the bottom of a div which has a scrollbar itself that won't work.
Code:
<script language="javascript" type="text/javascript">
var timeout = setInterval(reloadChat, 10);
function reloadChat() {
$("#chat").load("chat.php");
}
reloadChat();
</script>
and in chat.php i fetch rows from my database in which the last row is being displayed in a <div id="lastmessage"></div> which i want to scroll down to
Thanks in advance
Is .scrollIntoView() something like you want?
https://www.w3schools.com/jsref/met_element_scrollintoview.asp
Or maybe this can help?
https://stackoverflow.com/a/270628/4335288
var objDiv = document.getElementById("important");
objDiv.scrollTop = objDiv.scrollHeight;
I would use Element.scrollIntoView() with behavior set to smooth.
Source: https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollIntoView
window.onload = function(e){
var element = document.getElementById('second');
element.scrollIntoView({ behavior: 'smooth' });
}
#first {
height: 2000px;
background-color: lightgreen;
}
#second {
height: 2000px;
background-color: lightpink;
}
#third {
height: 2000px;
background-color: lightblue;
}
<html>
<head>
<title>Test</title>
</head>
<body>
<div id="first"></div>
<div id="second"></div>
<div id="third"></div>
</body>
</html>
behavior: 'smooth' will quickly provide good UX.
You can choose when to call element.scrollIntoView({ behavior: 'smooth' });. It will scroll to that DOM element when called.
I'm using JQuery to have my .wrapper div snap back to its original margin-top after being moved to margin-top. The original margin-top is dependent on browser height. I'm trying to do this by storing the original margin-top value into a variable, and using it for JQuery animate when I want to .wrapper div to snap back later on.
$(document).ready(function() {
//Adjust .wrapper Margin-top to adjust position to 1/4 of Window Broswer Height
var marginWindowSpace = ($(window).height()) / 4;
$(".wrapper").css("margin-top", marginWindowSpace);
var originalMargin = $(".wrapper").css("margin-top").toString();
});
$(".title").click(function() {
$("#results-container").empty();
$(".wrapper").animate({
'margin-top': originalMargin
}, 200);
$(".title-tag, .or, .random-article, .random-article-underline").fadeIn(500);
$("footer").addClass("footer-pos1");
});
QUESTION: Why wont my the animate margin-top accept my variable (where the original margin-top value is stored), even when converted to string? I don't want to use a static value as my margin-top.
If you want to see the app code, it's here. http://codepen.io/myleschuahiock/pen/zqvvNZ
Any help is appreciated! Thanks!
EDIT: I changed the click function to $('.go-back'), but the animate for magin-top should still be the same
Move the whole $(".title").click(function(){}) into the $(document).ready(function(){})
The problem exists because at the time of the initialisation of the $(".title").click(function(){}) originalMargin is not set yet because the document is not ready yet.
Do like this. there are some errors in your animate part.margin-top should be correct as marginTop and your string should convert as int and do like this.I implement as an example.hope this will help to you.
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Test</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
</head>
<style type="text/css">
body{
margin: 0;
padding: 0;
}
div.testing{
width: 100px;
height: 100px;
background-color: orange;
margin-top: 100px;
}
div.two{
width: 200px;
height: 200px;
background-color: green;
position:
}
</style>
<body>
<div class="testing"></div>
<br><br>
<h3 class="clk">Click me!</h3>
<div class="two"></div>
<script type="text/javascript">
$(document).ready(function(){
var one = $(".testing").css("margin-top").toString();
var vaL = parseInt(one,10);
$(".clk").click(function(){
$(".two").animate({'marginTop':vaL+'px'},1000);
});
});
</script>
</body>
</html>
note :
var one = $(".testing").css("margin-top").toString();
int this part get the margin-top value as a string.
var vaL = parseInt(one,10);
convert it to an integer.
then the animate part
$(".two").animate({'marginTop':vaL+'px'},1000);
As a newbie to Javascript, I don't find the language easy. The code below fades between two divs. During the fade, I would like to change the contents of each div. While I can successfully update CSS parameters, I have been unable to update the content. Perhaps somebody can help:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<html>
<head>
<style type='text/css' media='screen, print'>
#cycler {
position: relative;
}
#cycler div {
position: absolute;
z-index: 1;
background-color: white
}
#cycler div p {
font-size: 60px;
color: black;
margin: 0;
}
#cycler div.active {
z-index: 3
}
#cycler img {
display: block
}
</style>
<script type='text/javascript'>
$(window).load(function() {
setInterval('divCycler()', 3000);
});
function divCycler(e) {
var $active = $('#cycler .active');
var $next = ($active.next().length > 0) ? $active.next() : $('#cycler div:first');
$next.css('z-index', 2);
$active.fadeOut(1500, function() {
$active.css('z-index', 1).show().removeClass('active');
$active.innerHTML = "New HTML Text"; // This Line is not working !!!!!!!!!!!
$active.css('background-color', 'red');
$next.css('z-index', 3).addClass('active');
});
}
</script>
</head>
<body>
<div class='container'>
<div id='cycler'>
<div id='div1' class='active'>
<p>Test Message 1</p>
</div>
<div id='div2'>
<p>Test Message 2</p>
</div>
</div>
</div>
</body>
</html>
I have shown the complete HTML page including all the Javascript; there is no other code to this. Any help on the issue would be appreciated.
$active.innerHTML = "New HTML Text"; // This Line is not working !!!!!!!!!!!
is because $active is a jQuery object, not a DOM element, to solve your problem use:
$active[0].innerHTML = "New HTML Text";
or, with jQuery itself:
$active.html("New HTML Text");
Use .html() instead of innerHTML
$active.html("New HTML Text"); // This Line is not working
jQuery Documentation: html()
I want to change the background color if width is bigger than 100.
This is my code but it doesn't work.
Thanks for any help!
<html>
<head>
<style type="text/css">
div#mydiv {
width: 200px;
height: 100px;
background-color: red;
}
</style>
<script language="JavaScript">
function () {
var mydiv = document.getElementById("mydiv");
var curr_width = parseInt(mydiv.style.width);
if (curr_width > 100) {
mydiv.style.BackgroundColor = "blue";
}
}
</script>
</head>
<body>
<div id="mydiv" style=""></div>
</body>
</html>
Change
parseInt(mydiv.style.width);
mydiv.style.BackgroundColor = "blue";
To
mydiv.offsetWidth
mydiv.style.backgroundColor = "blue";
use
var curr_width = mydiv.offsetWidth;
instead
var curr_width = parseInt(mydiv.style.width);
Change:
var curr_width = parseInt(mydiv.style.width);
mydiv.style.BackgroundColor = "blue";
to:
var curr_width = mydiv.offsetWidth;
mydiv.style.backgroundColor = "blue";
I have set up a fiddle here.
Also notice I took it out of the function because it looked like it wasn't being called anywhere. You should also move the script out of the head to the bottom of the body tag or use window.onload.
UPDATE
Another fiddle with everything together
I assume this is a duplicate question.
Anyway, your intialization of curr_width need not include parseInt.
parseInt is for converting a value to integer type and here you doesnt require it.
Your code can be re-written as
<html>
<head>
<style type="text/css">
div#mydiv {
width: 200px;
height: 100px;
background-color: red;
}
</style>
<script language="JavaScript">
function () {
var mydiv = document.getElementById("mydiv");
var curr_width = mydiv.offsetWidth;
if (curr_width > 100) {
mydiv.style.BackgroundColor = "blue";
}
}
</script>
</head>
<body>
<div id="mydiv" style=""></div>
</body>
</html>
Assuming your function to be called onload. Here's the code:
<html>
<head>
<style type="text/css">
#mydiv {
width: 200px;
height: 100px;
background-color: red;
}
</style>
<script language="JavaScript">
function load(){
var mydiv = parseInt(document.getElementById("mydiv").offsetWidth);
if (mydiv > 100) {
document.getElementById("mydiv").style.backgroundColor = "blue";
}
}
</script>
</head>
<body onload="load();">
<div id="mydiv" style=""></div>
</body>
</html>
Changes:
Use offsetWidth to get the width of the div.
Use backgroundColor instead of BackgroundColor.
To get a proper computed width, you need to use the (not enough used) method getBoundingClientRect() https://developer.mozilla.org/en-US/docs/Web/API/element.getBoundingClientRect
Latest browsers have .width property, otherwise you just need to take right - left to get it.
Some comments:
- language="JavaScript" is useless. Like type="text/javascript". It's the default behavior. Seriously.
- you need to execute your code after the div has been created. So using onload or just by calling the code after in the html (like in my example)
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#mydiv {
width: 200px;
height: 100px;
background-color: red;
}
</style>
</head>
<body>
<div id="mydiv"></div>
<script>
/* run the code after the creation of #mydiv */
var mydiv = document.getElementById("mydiv");
var clientRect = mydiv.getBoundingClientRect()
var curr_width = clientRect.width || (clientRect.right - clientRect.left);
if (curr_width > 100) {
mydiv.style.backgroundColor = "blue";
}
</script>
</body>
</html>
Here is a working example http://jsbin.com/xapet/1/edit
Warning: to do this properly it's recommended that you execute this code each time the browser is resized.
Maybe you can take a look to the "element queries" thing, that will be a nice workaround according to media queries limitations.
https://encrypted.google.com/search?hl=en&q=element%20queries%20css
I want to make the last/third div to be filled the whole remaining space. I given the 100% height but there is scroll bar is coming, which i dont want to show. I there any CSS solution for same. if not possible from css then the jQuery/JS solution will be fine.
<html style="height:100%">
<head>
<style type="css">
html , body {
width:100%; height:100%;
padding:0px;
margin:0px;
}
</style>
</head>
<body style="height:100%;padding:0px;margin:0px;">
<div style="height:100%;width:100%">
<div style="height:100px;background-color:#ddd"> </div>
<div style="height:25px;background-color:#eee"> </div>
<div style="display:block;height:100%;background-color:#ccc"> </div>
</div>
</body>
</html>
In jQuery, you can try something like this:
$(function() {
$(window).resize(function() {
$('div:last').height($(window).height() - $('div:last').offset().top);
});
$(window).resize();
});
Whenever the window is resized, the last div's height is modified so that the div extends to the bottom of the page. Window's resize method is called on page load so that the div is resized immediately.
If you substract the top offset of the div from the height of the window, you are left with the maximum height available. If you have margins, borders of padding applied, you might have to adjust the value which is substracted, for example:
$('div:last').height($(window).height() - $('div:last').offset().top - 30);
Assuming you want the div 30px from the bottom of the window.
On modern browsers: set position: relative on the container div, position: absolute on the third div. Then you can position it to the top and bottom of the container the same time: top: 0px, bottom: 0px;
You could also use faux columns by adding a vertically repeating background image to the CSS making the columns appear toy the space - this gives the appear. You could add this image to the div that wraps the three columns or to the body tag.
If these columns a going to have content in them it's probably worth adding some as the columns will behave differently.
You can hide the overflow in the containing DIV:
<html>
<head>
<style>
*{margin:0;padding:0;}
html,body{height:100%;}
</style>
</head>
<body>
<div style="overflow:hidden;height:100%">
<div style="height:100px;background-color:#ddd"></div>
<div style="height:25px;background-color:#eee"></div>
<div style="height:100%;background-color:#ccc"> </div>
</div>
</body>
</html>
Note that content might dissapear when resizing the window using this technique.
You can use pure CSS height:100% (where 100% is the height of the visible area in the window) values in quirks mode by not using DOCTYPE at all or using IE-faulty HTML 4.0 DOCTYPE (without the .dtd url)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<body style="margin:0; padding:0; overflow:hidden;">
<div style="height: 100%; background: red"></div>
</body>
</html>
You can ditch the <!DOCTYPE.. entirely, it still would have the same effect. overflow:hidden declaration in body style is to get rid of the empty scrollbar in IE. But remember - this is quirks mode which means that you are on unpredictable territory, CSS box model differs from browser to browser!
html style="height:100%">
<head>
<style type="css">
html , body {
width:100%;
height:100%;
padding:0px;
margin:0px;
}
</style>
</head>
<body style="height:100%;padding:0px;margin:0px;">
<div style="height:100%;">
<div style="height:100px;background-color:#ddd"> </div>
<div style="height:25px;background-color:#eee"> </div>
<div style="position:fixed;top:125px;height:100%;width:100%;background-color:#ccc"> </div>
</div>
</body>
</html>
Perhaps this could work?! But I don't know whats happens if there is to mutch text...
Simply don't worry about it if your goal is to have the colour fill the bottom.
Set the colour of the outer div, and let the third one resize its height however it wants as content goes in.
<html style="height:100%">
<head>
<style type="css">
html , body {
width:100%; height:100%;
padding:0px;
margin:0px;
}
</style>
</head>
<body style="height:100%;padding:0px;margin:0px;">
<div style="height:100%;width:100%;background-color:#ccc">
<div style="height:100px;background-color:#ddd"> </div>
<div style="height:25px;background-color:#eee"> </div>
<div style=""> </div>
</div>
</body>
</html>
The property 'height: 100%;' will instruct browsers to take the 100 per cent of the available screen space for that particular div, which means that your browser will check the browsing space size and return it to the CSS engine without checking whether there are any elements inside it.
The only workaround that I see to fit here is to use the solution provided by David to use 'position: absolute; bottom: 0;' for that div.
it a bit ugly, but it works..
<html style="height:100%">
<head>
<style type="css">
html , body {
width:100%;
height:100%;
padding:0px;
margin:0px;
}
</style>
</head>
<body style="height:100%;padding:0px;margin:0px;">
<div style="width:100%;height:100%;">
<div style="width:100%;height:100px;background-color:#ddd;"> </div>
<div style="width:100%;height:25px;background-color:#eee;"> </div>
<div style="width:100%;height:100%;background-color:#ccc;margin-bottom:-1000em;padding-bottom:1000em;"> </div>
</div>
</body>
</html>
Here's a litle jquery fix I have done:
<html>
<head>
<title>test</title>
<script src="jquery-1.3.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
var heightToFill = $("#parentDiv").height() - $("#firstDiv").height() - $("#secondDiv").height();
$("#thirdDiv").height(heightToFill);
});
</script>
</head>
<body style="height: 100%; padding: 0px; margin: 0px;">
<div id="parentDiv" style="height: 100%; width: 100%; position:absolute;">
<div id="firstDiv" style="height: 100px; background-color: #ddd">
</div>
<div id="secondDiv" style="height: 25px; background-color: #eee">
</div>
<div id="thirdDiv" style="background-color: #ccc;">
a</div>
</div>
</body>
</html>
$(window).resize(function(){
$('.elastic').each(function(i,n){
var ph = $(this).parent().height();
var pw = $(this).parent().width();
var sh = 0;
var s = $(this).siblings().each(function(i,n){
sh += $(this).height();
})
$(this).height(ph-sh);
sh = 0, ph = 0, s=0;
});
});
put the following on on your script tag or external javascript.
then change
when you resize the window... it will automatically fit its height to available space on the bottom. you could have as many divs as you like however you can only have one elastic inside that parent. couldnt be bothered to calculate multiple elastics :) hope it helps
$(document).ready(function() {
var heightToFill = $("#parentDiv").height() - $("#firstDiv").height() - $("#secondDiv").height();
$("#thirdDiv").height(heightToFill);
$(window).resize(function(){ var heightToFill = $("#parentDiv").height() - $("#firstDiv").height() - $("#secondDiv").height();
$("#thirdDiv").height(heightToFill);
});
This should be included in case the browser is resized....
window.onload = setHeight
window.onresize = setHeight
function setHeight() {
document.getElementById('app').style.height = window.innerHeight + "px"
}