Develop Reference

How to add a sub parent class inside the parent class using Jquery

Hi I want to add a sub parent class to my parent class using jQuery.
Previously I've tried this:
$('.my-parent').wrap('<div class="my-sub-parent"></div>');
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="my-parent">
<div class="child-items">1</div>
<div class="child-items">2</div>
<div class="child-items">3</div>
<div class="child-items">4</div>
</div>
But this one inserts the class outside of my parent, not inside.
What I want to achieve is like this html structure:
<div class="my-parent">
<div class="my-sub-parent">
<div class="child-items"></div>
<div class="child-items"></div>
<div class="child-items"></div>
<div class="child-items"></div>
</div>
</div>
Is this achievable? Any help would be great. Thanks.

You need wrapInner function.
$('.my-parent').wrapInner('<div class="my-sub-parent"></div>');
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="my-parent">
<div class="child-items">1</div>
<div class="child-items">2</div>
<div class="child-items">3</div>
<div class="child-items">4</div>
</div>
For more resources.
https://api.jquery.com/wrapinner/

Is it possible to toggle different divs by clicking on different elements using the same function?

Say I have 50 div, like this:
<div class="btn1"></div> //Toggles the first container to appear
<div class="btn2"></div> //Toggles the second container to appear
<div class="btn3"></div> //Toggles the third container to appear
And another 50 div that contain information, like this:
<div class="container-1"><h1>This is the first container</h1></div>
<div class="container-2"><h1>This is the second container</h1></div>
<div class="container-3"><h1>This is the third container</h1></div>
Is it possible to make the corresponding div toggle when each button is clicked with just one function? I have read a little about delegation and operating on parents/siblings but it only seems to work on multiple buttons opening the same container, rather than each button opening each container.
Somehow I don't think writing a function for every div is the way to go.

yes it is possible. Basically you need to add a reference to clicked object so click event will know what to show/hide
$(function() {
$('.btn').on('click', function(e) {
var $dataTarget = $($(this).data('target'));
$dataTarget.show().siblings('.container').hide();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="btn btn1" data-target=".container-1"></div> //Toggles the first container to appear
<div class="btn btn2" data-target=".container-2"></div> //Toggles the second container to appear
<div class="btn btn3" data-target=".container-3"></div> //Toggles the third container to appear
<div class="container container-1">
<h1>This is the first container</h1>
</div>
<div class="container container-2">
<h1>This is the second container</h1>
</div>
<div class="container container-3">
<h1>This is the third container</h1>
</div>
This will show the container targeted, then will hide other containers.

Use starts with selector ^ Document here
Use data-* to store corresponding div on button.
Select the data-* then use as selector to show
$('div[class^=container]').hide();
$('div[class^=btn]').click(function() {
$('div[class^=container]').hide();
var thisclass = $(this).attr("data-class")
$('.' + thisclass).show();
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="btn1" data-class="container-1">1</div>
<div class="btn2" data-class="container-2">2</div>
<div class="btn3" data-class="container-3">3</div>
<div class="container-1">
<h1>This is the first container</h1>
</div>
<div class="container-2">
<h1>This is the second container</h1>
</div>
<div class="container-3">
<h1>This is the third container</h1>
</div>

You can use index and eq to do this
$("[class*='btn']").click(function(){
$("[class*='container-']").eq($(this).index()-1).toggle();
})
[class*="btn"]{
width:150px;
height:20px;
border:2px solid #000;
display:inline-block;
cursor:pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="btn1"></div>
<div class="btn2"></div>
<div class="btn3"></div>
<div class="container-1">
<h1>This is the first container</h1>
</div>
<div class="container-2">
<h1>This is the second container</h1>
</div>
<div class="container-3">
<h1>This is the third container</h1>
</div>

you can use something like this
$(document).ready(function() {
$("div[class^='btn']").each(function() {
$(this).click(function() {
var str = $(this)[0].className;
$(".container-" + str.substring(3, str.length)).toggle();
});
});
});
Find all the class which starts with btn and apply a click event to it..
and based on the number hide the corresponding container class.
Here is the full code:
$(document).ready(function() {
$("div[class^='btn']").each(function() {
$(this).click(function() {
var str = $(this)[0].className;
$(".container-" + str.substring(3, str.length)).toggle();
});
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="btn1">aaaa</div> //Toggles the first container to appear
<div class="btn2">bbbb</div> //Toggles the second container to appear
<div class="btn3">cccc</div> //Toggles the third container to appear
<div class="container-1">
<h1>This is the first container</h1>
</div>
<div class="container-2">
<h1>This is the second container</h1>
</div>
<div class="container-3">
<h1>This is the third container</h1>
</div>
(Source: fiddle https://jsfiddle.net/fxabnk4o/17/)

How to get the value in element child when click a div outside element parent JQuery

Sorry my english bad, for example I have 2 columns, every column when click div.open-model will show a model have a value is h3.title, I used jQuery but i cannot get value h3.title every column
$(document).ready(function() {
$('.open_modal').click(function(e) {
var h3title = $(this).find('.parent .title').html();
console.log('h3title');
e.preventDefault();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parent">
<h3 class="title">Title1</h3>
</div>
<div class="open-model">Open model</div>
<div class="parent">
<h3 class="title">Title2</h3>
</div>
<div class="open-model">Open model</div>

Try prev().
var h3title = $(this).prev('.parent').find(".title").text();
And after fixing other errors
$(document).ready(function() {
$('.open-model').click(function(e) {
var h3title = $(this).prev('.parent').find(".title").text();
console.log(h3title);
e.preventDefault();
});
});

You've got several issues here:
The class on the element is open-model so your selector of open_modal is incorrect
find() looks for child elements, yet the target you want to find is a child of a sibling, so you need prev().find() instead
h3title is a variable, so you don't need to wrap it in quotes when passing it as an argument to console.log().
Try this:
$(document).ready(function() {
$('.open-model').click(function(e) {
e.preventDefault();
var h3title = $(this).prev('.parent').find('.title').text();
console.log(h3title);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parent">
<h3 class="title">Title1</h3>
</div>
<div class="open-model">Open model</div>
<div class="parent">
<h3 class="title">Title2</h3>
</div>
<div class="open-model">Open model</div>

spelling of selector is wrong on click
use .prev() instead of .find()
$('.open-model').click(function(e) {// fix selector
var h3title = $(this).prev('.parent').find('.title').html();//use prev()
console.log(h3title);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parent">
<h3 class="title">Title1</h3>
</div>
<div class="open-model">Open model</div>
<div class="parent">
<h3 class="title">Title2</h3>
</div>
<div class="open-model">Open model</div>

Change it to
$(document).ready(function(){
$('.open-modal').click(function(e){
e.preventDefault();
var h3title = $(this).prev().find('.title').text();
console.log('h3title');
});
});

In the example below we are getting the the previous DOM element and as we can see in the structure we want to get the inner text of its child element.
$('.open-model').on('click', function(){
console.log($(this).prev().children().text());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parent">
<h3 class="title">Title1</h3>
</div>
<div class="open-model">Open model</div>
<div class="parent">
<h3 class="title">Title2</h3>
</div>
<div class="open-model">Open model</div>

if one item is clicked, remove the other items?

I'm learning Javascript and jQuery and I'm stuck at this one problem. Let's say my code looks like this:
<div id="hey"> hey </div>
<div id="how"> how </div>
<div id="are"> are </div>
<div id="you"> you </div>
Now, if i click one of the div's, i want the other ones to disappear.
I know, I could create 4 functions for each one of them with on.click hey and display none with how , are and you. But is there a easier way? I bet there is, with classes maybe?
Thanks for responding!

Use siblings to get reference to its "brothers".
Given a jQuery object that represents a set of DOM elements, the .siblings() method allows us to search through the siblings of these elements in the DOM tree and construct a new jQuery object from the matching elements.
$('div').click(function(){
$(this).siblings().hide();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="hey"> hey </div>
<div id="how"> how </div>
<div id="are"> are </div>
<div id="you"> you </div>
Or you can hide all the other div which not the clicked element using not
Remove elements from the set of matched elements.
$('div').click(function() {
$('div').not(this).hide();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="hey"> hey </div>
<div id="how"> how </div>
<div id="are"> are </div>
<div id="you"> you </div>

You can just hide siblings() of clicked div.
$('div').click(function() {
$(this).siblings().fadeOut()
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="hey">hey</div>
<div id="how">how</div>
<div id="are">are</div>
<div id="you">you</div>

Yeah there are some easier ways and I could tell a one from it,
Set a common class to all the elements that you are gonna target,
<div class="clickable" id="hey"> hey </div>
<div class="clickable" id="how"> how </div>
<div class="clickable" id="are"> are </div>
<div class="clickable" id="you"> you </div>
And you have to bind a single click event by using a class selector,
$(".clickable").on("click", function(){ });
Now use the .siblings() functions to hide the required elements,
$(".clickable").on("click", function(){
$(this).siblings(".clickable").hide();
});
But using a toggle instead of hide would sounds logical,
$(".clickable").on("click", function(){
$(this).siblings(".clickable").toggle();
});
Since you can do the same operation over all the elements.

You can use not to avoid element and this will indicate current instance.
$(document).ready(function(){
$("div").on("click",function(){
$("div").not(this).hide("slow");
})
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="hey"> hey </div>
<div id="how"> how </div>
<div id="are"> are </div>
<div id="you"> you </div>

Assign a class to each of the elements:
<div id="hey" class='sth'> hey </div>
<div id="how" class='sth'> how </div>
<div id="are" class='sth'> are </div>
<div id="you"class='sth' > you </div>
And write a js function onclick.
Remove class 'sth' from 'this' element in this function
Hide all elements with class 'sth' $('.sth').hide();

For this example - you don't need to add any further selectors to target the div's although in reality - this solution wwould cause all divs on the page to be affectecd - adding classes would be my actual suggestion: - but this works for this example. Click a div and all divs are hidden then the clicked one is shown. I also added a reset button to allow all divs to reappear.
$('div').click(function(){
$('div').hide();
$(this).show();
});
$('#reset').click(function(){
$('div').show();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="hey"> hey </div>
<div id="how"> how </div>
<div id="are"> are </div>
<div id="you"> you </div>
<hr/>
<button type="button" id="reset">Reset</button>

$(document).ready(function(){
$("div").on("click",function(){
$("div").not(this).toggle("slow");
})
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="hey"> hey </div>
<div id="how"> how </div>
<div id="are"> are </div>
<div id="you"> you </div>

Detach and append divs/html jquery

I thought this would be kinda straightforward but i cant wrap my head around this. I got to following html:
<div id="foo">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
</div>
<div id="bar">
<div class="test">test1</div>
<div class="test">test2</div>
<div class="test">test3</div>
<div class="test">test4</div>
</div>
I need to grab/detach the div's .test and put/append them into the .item div's. So the first div .test needs to go in the first div .item, the second div .test to the second div .item etc. So it becomes:
<div id="foo">
<div class="item">1<div class="test">test1</div></div>
<div class="item">2<div class="test">test2</div></div>
<div class="item">3<div class="test">test3</div></div>
<div class="item">4<div class="test">test4</div></div>
</div>
Now i found some jquery code and i came to this:
var child = $('#bar').find("div").eq(0);
var parent = $('#foo').eq(0);
child.detach();
parent.append( child );
This works but as suspected, it detaches/appends the first div. Now i need to detach/append them all one by one and from reading a lot of topics, i think i need to put a loop/each in there somewhere but i have no idea how and im not getting any closer after screwing around for hours.
Anyone who can put me in the right direction with this?

You can move all of them easily by just using the append() method and selecting all the divs:
$('#bar').append( $('#foo div') )
/* This is just for showing that the elements actually moved. */
#foo { background:red; }
#bar { background:blue; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="foo">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
</div>
<div id="bar">
<div class="test">test1</div>
<div class="test">test2</div>
<div class="test">test3</div>
<div class="test">test4</div>
</div>
<div>
Alternatively, if you want to do something with each element, you can use .each():
$('#foo div').each(function(i, elem) {
var $elem = $(elem);
//Do stuff
$('#bar').append($elem);
});
/* This is just for showing that the elements actually moved. */
#foo { background:red; }
#bar { background:blue; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="foo">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
</div>
<div id="bar">
<div class="test">test1</div>
<div class="test">test2</div>
<div class="test">test3</div>
<div class="test">test4</div>
</div>
<div>

On solution is to get both collections and iterate over one of the collections. Also note that you don't need to use .detach. .append will already do that.
var $fooItems = $("#foo .item");
var $barTests = $("#bar .test");
$fooItems.each(function(index, el) {
$(this).append($barTests.eq(index));
});
Example Fiddle

I think there are two solutions for your issue : .childern() function or usiing jQuery selectors
For example using selector :
$("#bar > div")
or using children() function :
$("#bar").children("div");
also look at this post, you may have your answer here : jQuery - get all divs inside a div with class ".container"