I have a visible div on screen, but when I gets its height, it always returns 0. How it is possible? I have tried many jquery and javascript methods to get hight but it returns 0. This is my div:
<div class="option-content">
<div class="row">
<div class="col-sm-12">
<div class="dropDownStyling" id="filterDropdowns">
</div>
</div>
</div>
<!-- Other contents -->
</div>
I have tried following methods to get height:
var $element = $("#filterDropdowns");
$element.css("height")
$element.height()
$element.innerHeight()
$element.outerHeight()
Also I tried javascript:
document.getElementById('filterDropdowns').offsetHeight
document.getElementById('filterDropdowns').clientHeight
But in all cases, it returns 0 while it returns the width value. Then why height value gets 0?
if you use blank DIV without any content than you will always get 0 height.
For Example :
<div id="demo" class="text">
<div id="abc">
</div>
</div>
so you must add content in DIV
Second way to get height of DIV you can use clientHeight.
document.getElementById("xxx").clientHeight;
create one function & Call after DOM ready
function test () {
var height = $('#filterDropdowns').innerHeight();
alert(height)
}
$(document).ready(function(){
$('#filterDropdowns').append('23');
test();
})
<div class="option-content">
<div class="row">
<div class="col-sm-12">
<div class="dropDownStyling" id="filterDropdowns">
</div>
</div>
</div>
//Other contents
</div>
https://jsfiddle.net/azL0070r/3/
HTML
<div class="option-content">
<div class="row">
<div class="col-sm-12">
<div class="dropDownStyling" id="filterDropdowns">
</div>
</div>
</div>
Javascript
var height = $('#filterDropdowns').height();
alert(height)<br>
CSS
#filterDropdowns {
height: 150px;
}
Related
I am trying to detach the div from the relevant parent and then append to the same parent div.
//Jquery Code
jQuery(function(){
moveColorDots();
});
function moveColorDots(){
var copyDivData = jQuery('.variations_form.wvs-archive-variation-wrapper').detach();
copyDivData.appendTo('.product-variations');
}
<div class="pp-content-post">
<div class="variations_form wvs-archive-variation-wrapper">
some data here
</div>
<div class="product-box">
<div class="glasses-sec">
<h3>title</h3>
</div>
<div class="product-variations"></div>
</div>
</div>
Expected result.
But after running the above code I am getting the following result.
.detach Description: Remove the set of matched elements from the DOM.
That means you append all the detached elements to every product-variations element ..So
You need to loop through the variations_form.wvs-archive-variation-wrapper elements by using .each()
Also you can use .appendTo() directly
//Jquery Code
jQuery(function(){
moveColorDots();
});
function moveColorDots(){
jQuery('.variations_form.wvs-archive-variation-wrapper').each(function(){
var product_variations = jQuery(this).next('div').find('.product-variations');
jQuery(this).appendTo(product_variations);
});
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="pp-content-post">
<div class="variations_form wvs-archive-variation-wrapper">
some data here 1
</div>
<div class="product-box">
<div class="glasses-sec">
<h3>title</h3>
</div>
<div class="product-variations"></div>
</div>
</div>
<div class="pp-content-post">
<div class="variations_form wvs-archive-variation-wrapper">
some data here 2
</div>
<div class="product-box">
<div class="glasses-sec">
<h3>title</h3>
</div>
<div class="product-variations"></div>
</div>
</div>
Note: This line of code var product_variations = jQuery(this).next('div').find('.product-variations'); is depending on your html structure it works for the posted html here .. But if you've another html structure you need to modify it to catch the desired element
A parent div contains multiple divs, one div named .div_object_last should always be at the end. Like the example below :
HTML
<div class="div_parent">
<div class="div_object">1</div>
<div class="div_object">2</div>
<div class="div_object_last"></div>
<div class="div_object">3</div> <!--- append -->
</div>
Javascript :
$('#div_parent').append('<div class="div_object">3</div>');
Expected result using JS :
<div class="div_parent">
<div class="div_object">1</div>
<div class="div_object">2</div>
<div class="div_object">3</div>
<div class="div_object_last"></div> <!--- moved to end --->
</div>
I was wondering if it was possible to put div_object_last at the end after the append event ?
Select the .div_object_last and use before() to add the new content:
$('.div_parent .div_object_last').before('<div class="div_object">3</div>');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="div_parent">
<div class="div_object">1</div>
<div class="div_object">2</div>
<div class="div_object_last">Last</div>
</div>
To insert an element before the last child element:
$('.div_parent').children().last().before('<div class="div_object">3</div>');
To move an existing element to be the last:
$('.div_object_last').appendTo('.div_parent');
To move el1 above/below el2:
// Above
$(el1).before(el2);
// Below
$(el1).after(el2);
You can try with this dynamic way :
$('.div_parent').append($('.div_parent .div_object_last'));
$('.div_parent div:last').before('<div class="div_object">3</div>');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="div_parent">
<div class="div_object">1</div>
<div class="div_object">2</div>
<div class="div_object_last">Last</div>
</div>
I am trying to get a DOM element by class and not sure why its returning undefined. I can query the parent element without any problems. Here is my code:
var contentPane = query('.contentPane', this.map.infoWindow.domNode)[0];
var header = query('.header', this.map.infoWindow.domNode)[0];
console.log(header);
console.log(contentPane);
The output in console:
>>undefined
<div class="contentPane">
<div class="esriViewPopup" id="esri_dijit__PopupRenderer_1" widgetid="esri_dijit__PopupRenderer_1">
<div class="mainSection">
<div class="header" dojoattachpoint="_title"></div>
<div class="hzLine"></div>
<div dojoattachpoint="_description"></div>
<div class="break"></div>
</div>
<div class="attachmentsSection hidden">
</div>
<div class="mediaSection hidden">
</div>
<div class="editSummarySection hidden" dojoattachpoint="_editSummarySection">
</div>
</div>
</div>
the .header was not rendered at the time of query. I have resolved this by using query when the containing function was completed.
For my current project I want to make a sort of fixed element in my DOM.
I am not using position: fixed because the element will lose its existence within the DOM and thus its original position (which in my opinion only makes things look worse). I made the element behave like a fixed element by just adding/removing margin-top: somevalue to the scrollable element, everytime when the user scrolls and the code I use was made possible within the JavaScript. Using this method also adds a nice looking animation to this whole "interaction".
The problem I am experiencing is that when the (browser) window has such a small height, that the element will reach for the footer, it will expand the container, body or whatever parent is on it. How do I prevent this from happening?
I made a JSFiddle per example of this issue.
$(document).ready(function() {
var topPadding = 10;
//Set the scrollable offset before starting the scroll
var scrollableTopOffset = $(".scrollable").offset().top;
$(window).scroll(function() {
/* When scrolling, determine wether the browser window still contains
scrollable: */
if (scrollableTopOffset < $(window).scrollTop()) {
//Code when scrollable is within the browser window...
//$(".shopping-cart").addClass("scrollable-fixed");
$(".scrollable").stop().animate({
marginTop: $(window).scrollTop() - scrollableTopOffset + topPadding
});
} else {
//Code when scrollable is not within the browser window...
//$(".shopping-cart").removeClass("scrollable-fixed");
$(".scrollable").stop().animate({
marginTop: 0
});
}
});
});
.some-content-block {
height: 150px;
margin-bottom: 5px;
background-color: red;
}
.scrollable {
height: 75px;
background-color: cyan;
}
footer {
height: 200px;
background-color: green;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<div class="container" style="background-color: blue;">
<div class="row">
<div class="col-md-12">
<div class="some-content-block">
</div>
</div>
</div>
<div class="row">
<div class="col-xs-10 col-sm-10 col-md-10">
<div class="col-md-4">
<div class="some-content-block">
</div>
</div>
<div class="col-md-4">
<div class="some-content-block">
</div>
</div>
<div class="col-md-4">
<div class="some-content-block">
</div>
</div>
<div class="col-md-4">
<div class="some-content-block">
</div>
</div>
<div class="col-md-4">
<div class="some-content-block">
</div>
</div>
<div class="col-md-4">
<div class="some-content-block">
</div>
</div>
<div class="col-md-4">
<div class="some-content-block">
</div>
</div>
</div>
<div class="col-xs-2 col-sm-2 col-md-2">
<div class="scrollable">
</div>
</div>
</div>
</div>
<footer></footer>
Edit: Here is my fiddle updated with the answer of SamGhatak: JSFiddle
I think I found a solution here:
https://jsfiddle.net/rv4mg8uq/2/
Added this code there:
if(($('footer').offset().top -scrollableTopOffset +topPadding)<$(window).scrollTop()){
//do nothing
}
Is it possible at all to hide a parent div if there is a child div missing?
In the example below I would like to hide the parent div of "#live-sessions" if some of the divs are missing such as .views-content and .views-row.
This is what it looks like when the divs are there:
<div id="live-sessions">
<div class="container">
<div class="row">
<div class="col-sm-3">
<h3 class="session-title">Sessions Live Now</h3>
<div class="col-sm-9">
<div class-"view-display-id-live_sessions">
<div class="views-content">
<div class="views-row">
</div>
<div class="views-row">
</div>
</div>
</div>
</div>
</div>
</div>
</div>
This is what it looks like when the divs are missing:
<div id="live-sessions">
<div class="container">
<div class="row">
<div class="col-sm-3">
<h3 class="session-title">Sessions Live Now</h3>
<div class="col-sm-9">
<div class-"view-display-id-live_sessions">
</div>
</div>
</div>
</div>
</div>
I tried using the :empty selector with the parent method, but my child div contains some blank lines so it doesn't think it's empty. Also I would like to hide the parent of the parent of the empty div.
$(".view-display-id-live_sessions:empty").parent().hide();
You have a typo in your html:
class-"view-display-id-live_sessions"
should be
class="view-display-id-live_sessions"
you can try the following jQuery code:
if ($(".view-display-id-live_sessions").html().trim() == '') {
$(".view-display-id-live_sessions").parent().parent().hide();
}
jqVersion demo
Use jQuery has() in a negative if test - http://api.jquery.com/has/
if(!$('#parent').has('.child')){
$('#parent').hide();
}
There isn't a one-line-query for this. Following code would do the trick:
$('#live-sessions .row').each(function(idx, row) {
if ($(row).find('.views-content').length == 0) {
$(row).hide();
}
});
If you want to keep using jQuery, you could instead do:
if ( ! $(".view-display-id-live_sessions").children().length ) { /* your logic */ }
Note that there's a syntax error in your code:
<div class-"view-display-id-live_sessions">
Should be
<div class="view-display-id-live_sessions">
If you understand your question:
First you need to check the number of .views-row divs. If the length is zero hide the parent div.
Ex:
if ($('.views-row').length < 1)
$('#live-sessions').hide();
Good Luck.
You need to trim the blank spaces, correct a typo and test for the text within the div -
class="view-display-id-live_sessions" // note the equals sign after class
The code to do the hiding (EDIT re-read problem again):
var liveSessionsText = $.trim( $('.view-display-id-live_sessions').text() );
if(0 == liveSessionsText.length) {
$('.view-display-id-live_sessions').closest('.row').hide();
}
The div with class="row" is the parent of the parent of view-display-id-live_sessions.