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How to hide parent div if first child is empty

I want to hide class "aa" if the first div element is empty in class "ca". Please guide me
My sample code:
<div class="aa">
<div class="ca">
<div></div>
<div class="cb"></div>
<div class="cc"></div>
</div>
<div>
Appreciate your response!

You can use children(":first") to get first child of div as
$(document).ready(function(){
if($('.ca').children(":first").text() == ""){
$('.aa').hide();
}
});
$(document).ready(function(){
if($('.ca').children(":first").text() == ""){
$('.aa').hide();
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="aa">
<div class="ca">
<div></div>
<div class="cb">A</div>
<div class="cc">B</div>
</div>
<div>

You can check to see if the first childNode of the .ca parent element has content, and then target .aa from there if it does not:
//If there is no content within the first div of the class="ca" div...
//choose between textContent and innerHTML below
//based on whether it is going to have any text or some HTML within (with possibly no text)
if (!document.querySelector('.ca').childNodes[0].innerHTML) {
//hide the class="aa" div
document.querySelector('.aa').style.display = 'none';
}

I can't handle to select the correct div (using Jquery)

$(document).ready(function() {
$(".myClass").click(function () {
$(".myClass", $(this)).first().scrollIntoView({behavior: "smooth",block: "start"});
});
});
.myClass {
cursor: pointer;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class=myClass>I click on this div
</div>
<div class=otherClass>Some random text
</div>
<div>
<div class=otherClass>Some random text
</div>
<div>
<div class=myClass>I want to scroll to this div
</div>
Here is my problem, i have this pattern that repeats itself several times in my page. Div having the class "otherClass" are generated dynamically in variable quantity.
<div>
<div class=myClass>
</div>
</div>
<div>
<div class=otherClass>
</div>
</div>
<div>
<div class=otherClass>
</div>
</div>
<div>
<div class=myClass>
</div>
</div>
My goal is by clicking on a "myClass" div to scroll down the window (using scrollIntoView()) to the next div with the same class.
I added a click event on each "myClass" div but i can't manage to select the next one. I tried to add a context to my selector $(".myClass", $(this)) to search only after the clicked div but it doesn't work (always returning me the current div ?).
I also tried using next() to "move" to the next div but i'm struggling with the fact that there is an unknown numbers of "otherClass" div between them.
What am i doing wrong ?
Sorry if my explanation isn't clear and thank you for your help.

Up to your html structure .myClass doesn't have any next .myClass on its level .. See the next code
$('.myClass').on('click' , function(){
$(this)
.parent() // select the parent div
.nextAll('div:has(.myClass)') // select the next div which has .myClass in it
.first() // select just one div next
.find('.myClass') // find the .myClass in this div
.addClass('Next'); // add class to it
});
.Next{
background : red;
color : #fff;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<div class=myClass>myClass</div>
</div>
<div>
<div class=otherClass>Other</div>
</div>
<div>
<div class=otherClass>Other</div>
</div>
<div>
<div class=myClass>myClass</div>
</div>
<div>
<div class=otherClass>Other</div>
</div>
<div>
<div class=otherClass>Other</div>
</div>
<div>
<div class=myClass>myClass</div>
</div>
Additional: if you need to reverse you'll need to use prevAll instead of nextAll and .last() instead of .first()

This will work no jQuery needed.
Here is the fiddle example: https://jsfiddle.net/e1xz74wj/
JS
let scrollToNext = 0;
const elements = document.querySelectorAll('.myClass');
document.getElementById('btn').addEventListener('click', () => {
++scrollToNext
if (scrollToNext < elements.length) {
elements[scrollToNext].scrollIntoView();
}
})
Explanation:
Increment the counter after clicking on the button to scroll to the desired element (finding element by specified className).
Each time a click occurs the counter is incremented by one hence the next element is selected. When the counter reaches the max amount of found elements it doesn't increment anymore.

Can't create simple text slides

I try to create simple slides for text and can't figure out why separate paragraphs start to show up. What i need is to change full div blocks with class text-block.
Here is the html:
<div id="text-blocks">
<div class="text-block">
<p>paragraph1</p>
<p>paragraph2</p>
</div>
<div class="text-block">
<p>paragraph3</p>
<p>paragraph4</p>
<p>paragraph5</p>
<p>paragraph6</p>
<p>paragraph7</p>
</div>
</div>
and js:
$(document).ready(function(){
$('.text-block:gt(0)').hide();
setInterval(function(){
$('#text-blocks :first-child').fadeOut()
.next().fadeIn()
.end()
.appendTo('#text-blocks');
},
3000);
})
Link to jsFiddle: http://jsfiddle.net/e2wFK/

You just need to change a selector to contain only direct children of #text-blocks
$('#text-blocks > :first-child').fadeOut()
jsFiddle Demo
Your previous selector $('#text-blocks :first-child') was selecting every first child inside #text-blocks, including the first paragraphs inside .text-block elements.

jquery show only child

I have a problem : I use classes on a div for simplicity, I would like to show a hidden div after a click, but only on that div, the problem is it shows on all divs, and I can't seem to get it working, here is a jsfiddle with the problem : http://jsfiddle.net/cWNvT/
HTML:
<div class="left">
Edit
<div class="edit">
<p>edit here</p>
</div>
</div>
<div class="left">
Edit
<div class="edit">
<p>edit here</p>
</div>
</div>
<div class="left">
Edit
<div class="edit">
<p>edit here</p>
</div>
</div>
JavaScript:
$(document).ready(function() {
$('.edit').hide();
$('.left a.edit-click').click(function() {
$('.left').children().show();
});
});​
Anyone have a solution for this ?

Try this working fiddle.
$(document).ready(function() {
$('.edit').hide();
$('.left a.edit-click').click(function(){
$(this).parent().children().show();
});
});
All I have done is use $(this).parent() instead of using your $(".left") selector.

Try finding the parent of the clicked element only, and using its children:
http://jsfiddle.net/cWNvT/1/
$(document).ready(function() {
$('.edit').hide();
$('.left a.edit-click').click(function(){
$(this).closest(".left").children().show();
});
});
​
$(".left") selects all elements with class .left in the document. $(this).closest(".left") finds the first parent of the clicked link that has class .left.

Change your code to this:
$('.left a.edit-click').click(function(){
$(this).next('.edit').show();
});
http://jsfiddle.net/cWNvT/3/

How to toggle (jQuery) with an anchor

I have a small problem with jQuery.
The situation:
I have a piece of jQuery code, where I toggle results.
JS Code:
//Set default open/close settings
$('.acc_container').hide(); //Hide/close all containers
//$('.acc_trigger:first').addClass('active').next().show(); //Add "active" class to first trigger, then show/open the immediate next container
//On Click
$('.acc_trigger').click(function(){
if( $(this).next().is(':hidden') ) { //If immediate next container is closed...
$('.acc_trigger').removeClass('active').next().slideUp(); //Remove all .acc_trigger classes and slide up the immediate next container
$(this).toggleClass('active').next().slideDown(); //Add .acc_trigger class to clicked trigger and slide down the immediate next container
}
return true; //Prevent the browser jump to the link anchor
});
Now I want to open - toggle an item on anchor position from the URL like (http://x.com/page.php#toggleItem2)
Question:
How read toggleItem2 from URL and open exactly this section?
Additional:
HTML Code:
<div class="container">
<h2 class="acc_trigger">Item1</h2>
<div class="acc_container">
<div class="block">
Inner Text in toggle 1
</div>
</div>
<h2 class="acc_trigger">Item2</h2>
<div class="acc_container">
<div class="block">
Inner Text in toggle 2
</div>
</div>
<h2 class="acc_trigger">Item3</h2>
<div class="acc_container">
<div class="block">
Inner Text in toggle 3
</div>
</div>
</div>
I hope the problem is clearly defined.

You should give your divs IDs according to the anchors, e.g.
<h2 class="acc_trigger">Item1</h2>
<div id="toggle1" class="acc_container">
<div class="block">
Inner Text in toggle 1
</div>
</div>
You can get the document fragment from the location object:
document.location.hash
Then it is simply (assuming the other containers are all hidden):
$(document.location.hash).slideDown().prev().addClass('active');

Try jquery toggle itself
http://api.jquery.com/toggle/

This is held within the window.location.hash variable.

You can do something like this:
http://jsfiddle.net/b6Znw/
Javascript:
$().ready(function(){
$('.acc_trigger a').click(function(){
$(this).closest('.acc_trigger').next('.acc_container').toggle()
return false;
})
})