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>
Related
I have a container with multiple divs and in each div I have a handler on which you can click.
The requirement is to return the index of the div in the container for further processing.
I've simplified the code for readability purposes.
The HTML:
<div class="container">
<div class="block">
<div class="handler">
Click
</div>
</div>
<div class="block">
<div class="handler">
Click
</div>
</div>
<div class="block">
<div class="handler">
Click
</div>
</div>
<div class="block">
<div class="handler">
Click
</div>
</div>
</div>
The Javascript code I tried so far but I always get -1 as the index:
$(document).ready(function(){
$('.handler').click(function(e) {
let index = Array.prototype.indexOf.call($('.container'), $(this).parents('.block'));
console.log(index);
});
});
I also created a fiddle.
So what am I doing wrong here?
You can do the following,
$('.handler').click(function(e) {
var el = e.target;
console.log([].indexOf.call(el.parentNode.parentNode.children, el.parentNode));
});
However if you want to know what was wrong in your code,
Array.prototype.indexOf.call($('.container')[0].children, $(this).parents('.block')[0])
This part should fix the problem in your code. You have been doing it all right, but for the parameter of indexOf we needed the children array of .container and clicked element.
You were passing the container element and current clicked element as an array. That is Array.prototype.indexOf.call('[Container Element]', ['current clicked div']) Which is not right. You should pass something like this,
Array.prototype.indexOf.call('[children, children, children...]', 'current clicked div element').
It was happening because the $('.container') returns an array with the element having a class name .container. But we needed all the children array of the element that contains container class.
And $(this).parents('.block') returns an array with the matching elements even if it is only one.
You can access the index using the index method on parent element of selection.
$(document).ready(function(){
$('.handler').click(function(e) {
console.log($(this).parent().index())
});
});
You can do that like this. Find the index of the closest element of the clicked element, which is also a direct child of .handler. To find index, use index().
$(document).ready(function() {
$('.handler').click(function(e) {
let index = $(this).closest('.block').index()
console.log(index);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container">
<div class="block">
<div class="handler">
Click
</div>
</div>
<div class="block">
<div class="handler">
Click
</div>
</div>
<div class="block">
<div class="handler">
Click
</div>
</div>
<div class="block">
<div class="handler">
Click
</div>
</div>
</div>
You're checking at the wrong level of nesting in your HTML. I believe what you're trying to do is check from one level higher, at ".container" and get the index of the ".block" element that was clicked.
This code works in your Fiddle:
$(document).ready(function(){
$('.handler').click(function(e) {
const p = e.target.parentElement.parentElement;
const index = Array.prototype.indexOf.call(p.children, e.target.parentElement);
console.log(p.className) // "container"
console.log(index)
});
});
This can be done simply using delegate in jQuery.
I modify your JSFiddle code.
$(".container").delegate('.block', 'click', function () {
console.log( $(this).index() );
})
u can use a id
<div class="container">
<div class="block">
<div id='0' class="handler">
Click
</div>
</div>
<div class="block">
<div id='1' class="handler">
Click
</div>
</div>
<div class="block">
<div id='2' class="handler">
Click
</div>
</div>
<div class="block">
<div id='3' class="handler">
Click
</div>
</div>
</div>
$(document).ready(function(){
$('.handler').click(function(e) {
let index = this.id
console.log(index);
});
});
https://jsfiddle.net/vhrt596x/2/
Basically i have a few parents that have the same class:
<div class="parent">
<div class="child"></div>
</div>
<div class="parent">
<div class="child"></div>
</div>
<div class="parent">
<div class="child"></div>
</div>
And when i click on a parent class i want to toggle its child. For that i'm using:
$(document).ready(function(){
$('.parent').click(function(e){
$(this).children('.child').toggle();
});
});
This does toggle my child but if i leave it visible and i click on the next parent i want to make all other children disappear.
Is this possible using only jquery/javascript?
Thank you!
You could use a class to manage display and just toggle that class on current parent and remove it from others
$('.parent').click(function(){
$('.active').not(this).removeClass('active');
$(this).toggleClass('active');
})
.parent{ margin-bottom:2em}
.child{display:none}
.active .child{ display:block}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parent">Parent 1
<div class="child">Child</div>
</div>
<div class="parent">Parent 2
<div class="child">Child</div>
</div>
<div class="parent">Parent 3
<div class="child">Child</div>
</div>
I think you need to show only one of childs. To do this work first hide all childs then show clicked child.
$('.parent').click(function(e){
$(this).siblings().children('.child:visible').toggle();
$(this).children('.child').toggle();
}).children(".child").toggle();
$('.parent').click(function(e){
$(this).siblings().children('.child:visible').slideUp();
$(this).children('.child').slideDown();
}).children(".child").slideUp();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parent">parent1
<div class="child">child1</div>
</div>
<div class="parent">parent2
<div class="child">child2</div>
</div>
<div class="parent">parent3
<div class="child">child3</div>
</div>
Please Try This:-
$('.parent').click(function(e){
if($(this).children('.child').is(':visible')){
$(this).children('.child').slideUp();
}else{
$('.parent .child').slideUp();
$(this).children('.child').slideDown();
}
});
I'm trying to remove the following DIV's:
<div class="whatever_name">
<div class="whatever_name">
<h2>subtitle</h2>
<p>content<p>
</div>
</div>
and need the following output:
<h2>subtitle</h2>
<p>content<p>
Using jQuery, I can not use remove() because it clear the content too. With pure javascript, happens the same.
I have no idea how to accomplish this issue.
Any idea?
EDIT:
Not always the structure is the same. It can vary, i.e.:
<div class="whatever_name">
<div class="whatever_name">
<div class="whatever_name">
<h2>subtitle</h2>
<p>content<p>
</div>
</div>
</div>
Just need an iterator that can handle such task.
Use unwrap() method twice on the children element.
$('.content .post-12')
// get children elements, or use contents()
.children()
// use unwrap twice to unwrap two parents
.unwrap().unwrap()
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="content">
<div class="post-12">
<h2>subtitle</h2>
<p>content</p>
</div>
</div>
UPDATE : With the updated content you just need to change the selector with your requirement.
$('div > div > h2,div > div > p').unwrap().unwrap()
// or use
// $('div > div:has(h2):has(p) > *')
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="whatever_name">
<div class="whatever_name">
<div class="whatever_name">
<h2>subtitle</h2>
<p>content
<p>
</div>
</div>
</div>
What is the proper way to re-apply jquery to objects which are cloned??
I have an example I rigged up in jsfiddle here: http://jsfiddle.net/49o6arLu/16/
<div class="hidden element-holder">
<div class="element">
<div class="button">Button</div>
<div class="green-square"></div>
</div>
</div>
<div class="element">
<div class="button">Button</div>
<div class="green-square"></div>
</div>
<div class="clear"></div>
<div class="add-element">Add Element</div>
$('div.button').click(function(event) {
if($(this).parent().children('.green-square').is(':visible')) {
$(this).parent().children('.green-square').hide();
}else{
$(this).parent().children('.green-square').show();
}
});
$('div.add-element').click(function(event) {
$('div.element-holder').children('div').clone().insertAfter($('div.element-holder'));
});
As you can see, the initial displayed box and button work just fine. However, When you add another element the new element button does not work anymore.
I understand why I have this problem, however I don't know the proper way I should go about re-applying the Jquery to the new elements which are cloned.
Can someone provide a solution to the jquery and provide some explanation as to what you did?
Thanks!
You can save the need to re-apply the handler to all the appended elements by having a single delegated click handler on a common parent element.
First of all amend your HTML to include the container, in this case #element-container:
<div class="hidden element-holder">
<div class="element">
<div class="button">Button</div>
<div class="green-square"></div>
</div>
</div>
<div id="element-container">
<div class="element">
<div class="button">Button</div>
<div class="green-square"></div>
</div>
<div class="clear"></div>
</div>
<div class="add-element">Add Element</div>
Then you can amend the Add Element button to append to that container:
$('div.add-element').click(function (event) {
$('div.element-holder').children('div').clone().appendTo('#element-container');
});
Finally you can add the delegated event handler to the new #element-container. Note that I also shortened the logic using toggle() and siblings():
$('#element-container').on('click', 'div.button', function (event) {
$(this).siblings('.green-square').toggle()
});
Example fiddle
In order to copy event handlers you should send true in the clone method:
$('div.add-element').click(function(event) {
$('div.element-holder').children('div').clone(true).insertAfter($('div.element-holder'));});
I have a div setup like so:
<div class="content">
<button class="show-comments" id="content1"></button>
</div>
<div class="comments-wrapper" id="comment1"></div>
<div class="content">
<button class="show-comments" id="content2"></button>
</div>
<div class="comments-wrapper" id="comment2"></div>
I have the following code:
$('.show-comments').click(function(e){
e.preventDefault();
$('.comments-wrapper').slideToggle('slow');
});
As you would assume, the code works but on a class basis. I'd like for it to open up only the .comments-wrapper of its associated id (i.e. open slideToggle comments2 if content 2 button is clicked and so on and so on).
How would I do this?
$('.show-comments').click(function(e){
e.preventDefault();
$(this).closest(".content").next('.comments-wrapper').slideToggle('slow');
});
Note that this is dependent on the .content element being immediately followed by the .comments-wrapper.
If you have access to modify the html itself, I would suggest adding a wrapper element and then doing the following to avoid the reliance on the exact order of elements:
<div class="wrapper">
<div class="content">
<button class="show-comments" id="content1"></button>
</div>
<div class="comments-wrapper" id="comment1"></div>
</div>
<div class="wrapper">
<div class="content">
<button class="show-comments" id="content2"></button>
</div>
<div class="comments-wrapper" id="comment2"></div>
</div>
$(this).closest(".wrapper").find('.comments-wrapper').slideToggle('slow');
This way, if you add an element between the .content and the .comments-wrapper it does not break the code.
You can do this:
$(this).parent("div").next('.comments-wrapper').slideToggle('slow');
This will find the related div of class .comments-wrapper and slide toggle.
And a fiddle: http://jsfiddle.net/xCJQB/
$('.show-comments').click(function (e) {
e.preventDefault();
var num = this.id.match(/\d+$/)[0];
$("#comment" + num).slideToggle('slow');
});
Demo ---> http://jsfiddle.net/7pkyk/1/
Use this context
$(this).closest('.comments').next('.comments-wrapper').slideToggle('slow');
If it is not the immediate element then you might try this as well
$(this).closest('.comments')
.nextAll('.comments-wrapper').first().slideToggle('slow');
you can add a common class to associate a button with a div.
html:
<div class="content">
<button class="show-comments group1" id="content1"></button>
</div>
<div class="comments-wrapper group1" id="comment1">1</div>
<div class="content">
<button class="show-comments group2" id="content2"></button>
</div>
<div class="comments-wrapper group2" id="comment2">2</div>
javascript:
$('.show-comments').click(function(e){
var associate = $(this).attr('class').match(/group\d+/).pop();
var selector = '.comments-wrapper.' + associate;
e.preventDefault();
$(selector).slideToggle('slow');
});
http://jsfiddle.net/uMNfJ/