how to make a function but select different div (Like php class) - javascript

I'm newbie in Jquery, how to make a function but select different div (Like php class)?
This is my code:
$(document).ready(function(){
$("#box-1").hover(function(){
$("#mebox-1").removeClass("hide");
$("#circle-1").addClass("hide");
});
$("#box-1").mouseleave(function(){
$("#mebox-1").addClass("hide");
$("#circle-1").removeClass("hide");
});
});
And I want to use this function for box-xxx. This is my HTML cod sample:
<div id="box-1" class="box">
<div id="circle-1" class="circle"></div>
<div id="mebox-1" class="hide circle-bg">
test
</div>
</div>
<div id="box-2" class="box">
<div id="circle-2" class="circle"></div>
<div id="mebox-2" class="hide circle-bg">
test
</div>
</div>
<div id="box-3" class="box">
<div id="circle-3" class="circle"></div>
<div id="mebox-3" class="hide circle-bg">
test
</div>
</div>

Try to use that common classes attached with those elements, And most importantly use the this reference so that we can target the elements inside the element over which we are moving.
$(".box").hover(function(){
$(".circle-bg",this).removeClass("hide");
$(".circle",this).addClass("hide");
},function(){
$(".circle-bg",this).addClass("hide");
$(".circle",this).removeClass("hide");
});
DEMO

As you have already defined common classes. You should use .find() to get the descendants.
Use
$(".box").hover(function(){
$(this).find(".circle-bg").removeClass("hide");
$(this).(".circle").addClass("hide");
},function(){
$(this).find(".circle-bg").addClass("hide");
$(this).find(".circle").removeClass("hide");
});
Also I have passed the mouseleave event handler as second argument to .hover() function.

Try with this:
var n="";
$('[id^="box-"]').hover(function(){
n = this.id.split('-')[1];
$("#mebox-"+n).removeClass("hide");
$("#circle-"+n).addClass("hide");
},function(){
$("#mebox-"+n).addClass("hide");
$("#circle-"+n).removeClass("hide");
});
fiddle

Related

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>

re-applying jquery to cloned objects

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'));});

setAttribute use for Javascript functions

I have 3 nested divs..
<div onclick="highlight(this)">1
<div onclick="highlight(this)">2
<div onclick="highlight(this)">3
</div>
</div>
</div>
To stop event-bubbling, I want add a syntax to the divs - stopPropagation().
I've tried (for first div only here)
document.querySelectorAll("div")[0].setAttribute("onclick", "event.stopPropagation()");
But it's not working. What is the solution/alternative to this..??
I want the divs to be like..
<div onclick="highlight(this) event.stopPropagation()">1
As you need to stop propagation of event, it seems to make sense that the corresponding action is attached to event itself. Here's one possible way of using it:
HTML
<div id="outer" onclick="highlight(event, this)">
<div id="middle" onclick="highlight(event, this)">
<div id="inner" onclick="highlight(event, this)">
</div>
</div>
</div>
JS
function highlight(event, target) {
event.stopPropagation();
console.log( target.id + ' is clicked' );
}
Demo.

Javascript click specific to ID

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/

jQuery closest class selector

<div class="wrap">
<div class="Level2">Click me</div>
<div class="Level3">Information</div>
</div>
<div class="wrap">
<div class="Level2">Click me</div>
<div class="Level3">Information</div>
</div>
<div class="wrap">
<div class="Level2">Click me</div>
<div class="Level3">Information</div>
</div>
<div class="wrap">
<div class="Level2">Click me</div>
<div class="Level3">Information</div>
</div>
jQuery
$('.Level2').click(function(){
$('.Level2').closest('.Level3').fadeToggle();
});
I wanted to select the closest level3 to fadeIn and fadeOut, but doesn't work. Is my syntax wrong? online Sample :http://jsfiddle.net/meEUZ/
Try .next() instead of .closest() that traverses through the ancestors of the DOM element.
Working Demo
Also you should use $(this) rather than $('.Level2') else it'll select ALL the .Level2 rather than the clicked one.
You can also go for something like this - $(this).closest('.wrap').find('.Level3').fadeToggle();.
jQuery's .closest() method doesn't select sibling selectors, but parents. Looks like you're looking for the .siblings() method.
$('.Level2').click(function(){
$(this).siblings('.Level3').fadeToggle();
});
closest travels up the dom tree. it won't find something thats a sibling. you can use a find on a parent to achieve this
$('.Level2').click(function(){
$(this).parent().find('.Level3').fadeToggle();
});
Yes, There are many method avaiable in Jquery to find closest of the DOM element
$('.Level1').click(function(){
$(this).next('.Level3').fadeToggle();
});
$('.Level2').click(function(){
$(this).closest('.wrap').find('.Level3').fadeToggle();
});
$('.Level4').click(function(){
$(this).parent().find('.Level3').fadeToggle();
});
$('.Level5').click(function(){
$(this).siblings('.Level3').fadeToggle();
});
.level{background:Red;width:200px;height:40px;}
.Level3{background:blue;width:300px;height:50px;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrap">
<div class="Level1 level">Click me()sing next)</div>
<div class="Level3">Information</div>
</div>
<div class="wrap">
<div class="Level2 level">Click me(Using closest)</div>
<div class="Level3">Information</div>
</div>
<div class="wrap">
<div class="Level4 level">Click me(Usingh Parent)</div>
<div class="Level3">Information</div>
</div>
<div class="wrap">
<div class="Level5 level">Click me(Using Sibiling)</div>
<div class="Level3">Information</div>
</div>
Yes! closest starts the DOM search from the selector you pass to it, and goes upwards the DOM hierarchy, searching through the parents/ancestors. Use siblings or next instead.
Like this:
$('.Level2').click(function(){
$(this).siblings('.Level3').fadeToggle();
});
Get a clear idea from the following code:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function () {
$(".add").on("click", function () {
var v = $(this).closest(".division").find("input[name='roll']").val();
alert(v);
});
});
</script>
<?php
for ($i = 1; $i <= 5; $i++) {
echo'<div class = "division">'
. '<form method="POST" action="">'
. '<p><input type="number" name="roll" placeholder="Enter Roll"></p>'
. '<p><input type="button" class="add" name = "submit" value = "Click"></p>'
. '</form></div>';
}
?>

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