I am having an issue targeting deep nested div tags in vanilla javascript. what's happening is when I run a query check I seem to be getting null. Keep in mind the DOM elements are js injected from an API so I need to target the selector and add a class.
var select = document.querySelector('#wrapper div div div div');
<div id="wrapper">
<div>
<div>
<div>
<div>div to target</div>
</div>
</div>
</div>
</div>
Related
I'm trying to get the div element that's nested deep within another div, but can't get the CSS Selector string to work.
The div I want does not have a unique identifier, but resides deep within another div that has. I've gotten that top level div, but have no clue how to get the nested one.
DOM:
var obj = document.body.querySelector('.qvobject[data-qlikobjectid="XFvnjF"]');
console.log(obj);
var cont = obj.querySelector('.kpi-value');
console.log(cont);
<div class="qvobject" data-qlikobjectid="XFvnjF">
<div>
<div>
<div class="kpi-value">I WANT THIS</div>
</div>
</div>
</div>
The result is that "obj" is the right object, but "cont" is null, so it can't find it.
You can select it using the child selector. Just put a space between the parent selector and the child selector.
This makes the traverser go further to any level in the dom to select the desired element.
var element = document.querySelector('.qvobject[data-qlikobjectid="XFvnjF"] .kpi-value');
console.log(element);
<div class="qvobject" data-qlikobjectid="XFvnjF">
<div>
<div>
<div class="kpi-value">I WANT THIS</div>
</div>
</div>
</div>
I need to verify if a DIV has some text or not inside of it BUT NOT inside its children, eg see this example
<div id='one'>
<div id='two'>Abc</div>
</div>
<div id='three'>xyz
<div id='four'></div>
</div>
If I hover/click element one I want to get false (no text), but if i hover element three I want to get true
i tried using
$('#one').text().trim().length > 0
but it seems to check also any children which is want I do not want to happen
This is already answered here: jquery - get text for element without children text
Also mentions using a plugin to accomplish getting only the text of the element and not child elements here: http://viralpatel.net/blogs/jquery-get-text-element-without-child-element/
This meets your requirements
window.onload=function(){
var two = document.getElementById('two').textContent;
console.log(two.trim()=='');
var three = document.getElementById('three').textContent;
console.log(three.trim()=='');
}
<div id='one'>
<div id='two'>Abc</div>
</div>
<div id='three'>
<div id='four'></div>
</div>
In JavaScript I want to use document.querySelector to "grab" the last div (<div class="widget-footer">) in below HTML. However after many tries, I still can't figure out the correct CSS selector syntax to use.
The following code does not work:
document.querySelector (".skin-grid-widgets.ui-sortable.gridWidgetTemplatePositie.AgendaStandaard.disablesorting.hoogte-1-knoppen-0.breedte-1.widget-footer")
Here is the HTML I am working with
<div class="skin-grid enkeleKolom" id="Infobalk">
<div class="skin-grid-widgets ui-sortable">
<div class="gridWidgetTemplatePositie AgendaStandaard disablesorting hoogte-1-knoppen-0 breedte-1">
<div class="widget-header">
here comes the header text
</div>
<div class="widget-body">
some body text
</div>
<div class="widget-footer">
here comes the footer text
</div>
</div>
</div>
</div>
I've surfed everywhere to find example of complex CSS selectors used with querySelector, but to no avail. Any help would be really appreciated.
Your issue is you need a space in between each child element you are trying to select. If you do not have spaces in between your class selectors, by CSS specification, it will look for both classes on the same element.
Change your selector to look like the following:
var footer = document.querySelector(".skin-grid-widgets.ui-sortable .gridWidgetTemplatePositie.AgendaStandaard.disablesorting.hoogte-1-knoppen-0.breedte-1 .widget-footer");
footer.classList.add("highlight");
.highlight {
background-color: yellow;
}
<div class="skin-grid enkeleKolom" id="Infobalk">
<div class="skin-grid-widgets ui-sortable">
<div class="gridWidgetTemplatePositie AgendaStandaard disablesorting hoogte-1-knoppen-0 breedte-1">
<div class="widget-header">
here comes the header text
</div>
<div class="widget-body">
some body text
</div>
<div class="widget-footer">
here comes the footer text
</div>
</div>
</div>
</div>
try this:
<script>
document.querySelector (".skin-grid-widgets .gridWidgetTemplatePositie .widget-footer");
</script>
You don't need to add adjacent classes like "skin-grid-widgets ui-sortable" in querySelector, if you do so then query selector assumes that "skin-grid-widgets" is parent of "ui-sortable". Use just one of the classes at one DOM level.
The selector ain't complex, your thoughts are.
Listen to yourself, to the description you provide of what you want to select:
"grab" the last div in below HTML
Not grab the node with the class widget-footer inside of a node that has all these classes: gridWidgetTemplatePositie AgendaStandaard disablesorting hoogte-1-knoppen-0 breedte-1, inside a node ...
//a utility, because DRY.
//and because it's nicer to work with Arrays than with NodeLists or HTMLCollections.
function $$(selector, ctx=document){
return Array.from(ctx.querySelectorAll(selector));
}
//and the last div in this document:
var target = $$('div').pop();
or
"grab" <div class="widget-footer"> in below HTML
var target = document.querySelector("div.widget-footer");
or the combination: grab the last div.widget-footer in the HTML
var target = $$('div.widget-footer').pop();
I'm working within a really rigid framework (NetSuite) and there's a small section that I have direct control over which is the h3 and p text below. The structure is similar to this:
<div class="grandparent">
<h1>Title Text</h1>
<div class="otherstuff">Some text</div>
<div class="parent">
<h3>Text I have control over</h3>
<p>More text I have control over</p>
</div>
</div>
I want to hide the title text and the contents of '.otherstuff' for this page. There are multiple pages similar to this so I'm looking for a clean way of getting it done.
I've tried giving the h3 tag a class, then the following:
$('h3.myclass').parent().closest('h1').css('display','none);
and variations of that but without any luck. I've looked into the .parentUntil() function but I run into the same problem. I have no problem grabbing ancestor elements but run into trouble when trying to grab elements of those ancestors.
Can anyone help me out?
EDIT: Thank you everyone for your time and effort in answering my question. I really appreciate it!
Use closest() to traverse up to the grandparent
Use find() to select the desired elements
You can use hide() in place of css('display', 'none') as they are equivalent
var grandparent = $('.myclass').closest('.grandparent');
grandparent.find('h1, .otherstuff').hide();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="grandparent">
<h1>Title Text</h1>
<div class="otherstuff">Some text</div>
<div class="parent">
<h3 class="myclass">Text I have control over</h3>
<p>More text I have control over</p>
</div>
</div>
I can think of two selectors that might work assuming you put .myclass back in.
$('.myclass').closest('.grandparent').find('h1').css('display','none');
or
$('.myclass').parent().siblings('h1').css('display','none');
have direct control over which is the h3
Try utilizing .parent() , .siblings()
$("h3").parent().siblings().hide(); // `$(".parent").siblings().hide();` ?
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
</script>
<div class="grandparent">
<h1>Title Text</h1>
<div class="otherstuff">Some text</div>
<div class="parent">
<h3>Text I have control over</h3>
<p>More text I have control over</p>
</div>
</div>
You may use:
$('.myclass').closest('.grandparent').find('>h1,>.otherstuff').hide();
> is for direct descendant element.
closest() selects ancestors, what you want is siblings().
So:
$('.your_h3_class').parent().siblings('h1')
will return an array of h1 siblings of the parent div, and in your case the first item of that array is your h1.
And you can iterate through those and hide them (in case there is ever more than one)
If the title is always immediately before the div with the "otherstuff" class, then you could use this:
$('.otherstuff').prev('h1').css('display', 'none');
Documentation here: https://api.jquery.com/prev/
I am using jsoup to parse an html document. I need to extract all the child div elements. This is basically div tags without nested div tags. I used the following in java to extract div tags,
Elements bodyTag = document.select("div:not(div>div)");
Here is an example:
<div id="header">
<div class="container">
<div id="header-logo">
<a href="/" title="mekay.com">
<div id="logo">
</div> </a>
</div>
<div id="header-banner">
<div data-type="ad" data-publisher="lqm.j2ee.site" data-zone="ron">
</div>
</div>
</div>
</div>
I need to extract only the following:
<div id="logo">
</div>
<div data-type="ad" data-publisher="lqm.j2ee.site" data-zone="ron">
</div>
Instead, the above code snippet is returning all the div tags. So, could you please help me figure out what is wrong with this selector
This one is perfectly working
Elements innerMostDivs = doc.select("div:not(:has(div))");
Try it online
add your html file
add css query as div:not(:has(div))
check resulted elements
If you want only div leafs that do not have any children then use this
Elements emptyDivs = document.select("div:empty");
The selector you are using now means fetch me all the divs that are not direct children of another div. It is normal that it brings the very first parent div, because the div id="header" is not a direct child of a div. Most likely its parent is body.