jQuery not doing what I want it to do - javascript

I'm having trouble with a little jQuery, and thought someone in the community could help me out? So, my markup is as follows:
<div class="left">
<ul id="editing-nav">
<li><a class="active testforso" href="#TestForSO">Test For SO</a></li>
<li><a class="testforso2" href="#TestForSO2">Test For SO2</a></li>
...and so on.
</ul>
</div>
<div class="scroll">
<div class="scrollContainer">
<div id="testforso">
...some content
</div>
<div id="testforso2">
...some content
</div>
...and so on.
</div>
</div>
So, basically - .left is floated left, and .scroll is on the right side. I am looking for a way so the active nav element (by default, the first one, and then when the user would click another one, it'd assign that element a class of ".active" and remove the previous one's active class)'s co-insiding div has a display:block, while all others hide. I'm doing this inside of fancybox, which makes it a little bit more complicated, but here's what I have now -
$('#editing-nav li > a').click(function() {
$('#editing-nav li > a').removeClass('active');
$(this).addClass('active');
activeClassID = $(this).attr('class'); // grabs the nav class for the id to show in .scroll
var divIDToShow = ('.scroll .scrollContainer #') + activeClassID; // grabs the DOM path & ID of the coinciding div to show
divIDToShow = divIDToShow.replace(' active', ''); // removes " active" from the class (because before it would have a class of "testforso2 active"; now it just has "testforso".
$('.scrollContainer div:not(#' + divIDToShow + ')').hide();
$('.scrollContainer #' + divIDToShow ).show();
});
This works for the first link someone clicks, but not after that. I don't know if I was clear earlier, but the class for the #editing-nav li a co-incides with what div to show inside of .scroll.
Any ideas? I'm not sure why it's doing this... Thank you!

This issue is with your id selector - try this instead
EDIT
Figured out the real issue here - not sure why it works the first time but your divIDToShow variable contains too much information. See here for a cut down version

The reason why it's doing this is probably because it ran into an error during the first click. 'active testforso'.replace(' active') evaluates to 'active testforso' because there is no ' active' in the string. Even if you fix that, you don't know whether 'active' is in front or at the back of the class string. You could instead do .replace(/\s*active\s*/, '') , but my example below just removes all spaces.
I think you could probably change your code to something like:
$('#editing-nav li > a').click(function() {
$('#editing-nav li > a:active').removeClass('active');
$(this).addClass('active');
activeClassID = $(this).attr('class'); // grabs the nav class for the id to show in .scroll
var divIDToShow = activeClassID; // grabs the DOM path & ID of the coinciding div to show
divIDToShow = divIDToShow.replace('active', '').replace(/\s+/g,''); // removes "active" from the class then remove all spaces in what's left - "testforso2 active"; now it just has "testforso".
$('.scrollContainer div:not(#' + divIDToShow + ')').hide();
$('#' + divIDToShow ).show();
});
BUT:
Instead of doing all these, you might want to use the jQuery-BBQ plugin which allows you to track states through the hash. So you can just detect changes in the hash like, for example, using the hash as the id itself.

Related

Hide a div if an element has been clicked twice in a row, else Show

I have several items in my navigation bar, and a div next to it, ie:
<nav>
<a id="a"></a>
<a id="b"></a>
<a id="c"></a>
</nav>
<div id="menu-col"></div>
If the same link is clicked twice in a row, I want to hide #menu-col. If not, I want #menu-col to remain visible.
I'm not a javascript guy so I tried this:
var lastClicked;
$('nav a').on('click', function(e) {
alert(e.target.id + " - " + this.lastClicked);
if (e.target.id == this.lastClicked) {
$('#menu-col').hide();
this.lastClicked = '';
}
else {
$('#menu-col').show();
this.lastClicked = e.target.id;
}
});
Then I remembered that javascript assigns references, and not values. So when I did this.lastClicked = e.target.id; I'm assigning a reference to my element's id, then on the next click I make that e.target.id == ''.
In javascript, what would be the proper way of closing a box if the same link is clicked twice, and if not making sure the box is visible.
You can achieve this using toggleClass() to set a state class on the clicked a and also using toggle() on the .menu-col to show or hide it based on that state class. Try this:
$('nav a').click(function(e) {
e.preventDefault();
var $a = $(this);
$a.toggleClass('active').siblings().removeClass('active');
$('.menu-col').toggle($a.hasClass('active'));
});
.menu-col {
display: none;
}
.active {
color: #C00;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<nav>
<a id="a" href="#">a</a>
<a id="b" href="#">b</a>
<a id="c" href="#">c</a>
</nav>
<div class="menu-col">menu-col</div>
As long as you keep those ids unique across you app (which you should be doing anyway) the approach you've chosen isn't wrong. Any primitive in javascript is actually stored by value. Those primitives are string, number, boolean, and symbol. For more info see here https://developer.mozilla.org/en-US/docs/Glossary/Primitive
I would suggest something like this, you should have some kind of condition in which the div shows after it has been hidden.
$('nav a').dblclick(function(event) {
event.preventDefualt();
alert($(this).attr('id'));
$('#menu-col').toggle();
});
Something like that should be exactly what you are looking for, like I said though, there should be a condition in which it shows itself again, I made it a toggle so any double click on any 'nav a' element will cause it to show/hide the div.
Just for the sake of an option. Here is another way for double clicks(clicked twice in a row).
Using ondblclick event.
Double-click me.

Trying to do a:active to stay on untill other link is clicked

What I'm trying to do is this: I have two links hot/update. When hot is clicked it should turn red and update to be black. When update is clicked it should turn red and hot to be black.
This works on a Fiddle, but not on my website.
I was able to find various answers on SO, as this seems like a common thing to ask. I was implementing one by one, but none of them works. They seem to work fine in fiddle but not on my web.
HTML:
<div id="Space" >
<ul>
<li role="presentation" class="sort">
<a class="link" href="/?sort=score&page=1" style="text-decoration:none;">hot</a>
</li>
<li role="presentation" class="date">
<a class="link" href="/?sort=date&page=1" style="text-decoration:none;">update</a>
</li>
</ul>
</div>
JavaScript:
$(function() {
var links = $('a.link').click(function() {
links.removeClass('active');
$(this).addClass('active');
});
});
CSS:
a.link.active { color: red; }
a, a:visited { color: black }
Right now, this does what a:active does, it won't stay red.
var links = does not do what you think it does.
You are thinking it is doing this:
var links = $('a.link');
But, since you're assigning it to the actual click event, it's not resulting in that selector.
You need to revise your code as follows:
// This is a "safer" document ready, to prevent conflicts with other $ libraries
jQuery(function($) {
$('a.link').click(function() {
// Remove the class from all other links
$('a.link').removeClass('active');
// Add the class to _just this link_
$(this).addClass('active');
});
});
Or, a version that preserves the var links:
// This is a "safer" document ready, to prevent conflicts with other $ libraries
jQuery(function($) {
// Assign all links to the "links" variable
var links = $('a.link');
links.click(function() {
// Remove the class from all other links
links.removeClass('active');
// Add the class to _just this link_
$(this).addClass('active');
});
});
Here's a working fiddle: https://jsfiddle.net/cale_b/tqzt8f7s/1/
So to clarify you want certain buttons to be highlighted based on whether or not the url has a certain query. Highlight sort if url contains /?sort=score&page=1 and highlight date if url contains /?sort=date&page=1.
To do this all you need to do is search for each of those strings inside of your page's (window.location.search). The code for such a thing would be.
const highLightWhat = (window.location.search).search('sort=score') !== -1 ? 'Highlight sort' :
(window.location.search).search('sort=date') !== -1 ? 'Highlight date' :
'Highlight Nothing';
This flag then can be used as a reference to highlight one 'a' tag or another.
I hope this helped! (:
Try this javaScript once
$(function() {
$('a.link').click(function(event) {
event.preventDefault();
$('a.link').removeClass('active');
$(this).addClass('active');
});
});

Efficient jQuery/JS - avoiding copy-paste the same code again & again

I need to write an efficient code in order to keep it simple & code file small, also I want to use the knowledge I hopefully get from here in future codes.
UPDATE: Just to be clear - my example is fixed "buttons" on browser window side & if you click on one of them, it takes you to div with same ID (look at code below).
IMAGE:
MY CODE EXAMPLE:
//Smooth Scroll Menu Links
jQuery('.div1').on('click', function(e) {
e.preventDefault();
jQuery('html,body').animate({scrollTop:jQuery(this.hash).offset().top-100}, 800);
});
//I have to copy-paste it 1000 times & only change the ".div1" to something else
//Note that I need a solution with different class names, not "div1", "div2" etc but e.g "location", "potato", "car" etc.
How to make this code working without writing same lines for every single div?
There got to be a way to get class from item you click & then scroll to item with same name ID, right? Or any other way to keep codes shorter in that kind of situations - otherwise it's just copy-paste-huge-file fest.
You can give each button a class so you can catch them all, than go to the element you want to scroll to by looking at the attribute of the clicked button :)
HTML
<div class="buttons" data-scroll="div1">div1</div>
<div class="buttons" data-scroll="div2">div2</div>
<div class="buttons" data-scroll="div3">div3</div>
<div class="content" id="div1">some content</div>
<div class="content" id="div2">some content</div>
<div class="content" id="div3">some content</div>
JS
$('.buttons').on('click', function(e) {
e.preventDefault();
var scrollTarget = $(this).data("scroll");
scrollme(scrollTarget);
function scrollme(target) {
$('html,body').animate({scrollTop:$("#"+target).offset().top}, 800);
}
});
example: http://jsfiddle.net/7gd66kr1/1/
try this i hope will work with you :
jQuery('div').on('click', function(e) {
e.preventDefault();
jQuery('html,body').animate({scrollTop:jQuery(this.hash).offset().top-100}, 800);
});
note that : this function will aplay on all divs in page
I think there are more than an unique solution. If you don't want to modify your HTML, then you need a condition to determine if the clicked element is an "active" one:
jQuery('div').on('click', function(e) {
var id = $(this).attr('class');
var scrollto = $('#' + id);
if(scrollto.length > 0) {
e.preventDefault();
jQuery('html,body').animate({scrollTop:scrollto.offset().top-100}, 800);
}
});
If you "can" modify your HTML, it's wise to add some attribute to the "active" elements (the ones that are buttons), so you know they scroll the page, or put them inside a container. The attribute you add may be a class or any other valid attribute (I recommend "rel", but might be "data" as spotted by #Iliya Reyzis , who selects by class and scrolls to "data") and select them by it:
<div class="div1" rel="mybutton">div1</div>
jQuery("[rel='mybutton']").on('click', function(e) {
var id = $(this).attr('class');
var scrollto = $('#' + id);
e.preventDefault();
jQuery('html,body').animate({scrollTop:scrollto.offset().top-100}, 800);
});
Hope it helps!!

Need clean jQuery to change parent's class when children are clicked

I needed some method of adding/removing classes of a parent element when it's children are clicked to reflect which child is currently selected. In this case a UL parent and LI children in a tab scheme. I needed a way to mark the current tab on the UL so I could style a background sprite on the UL; since styling my LI's backgrounds would not work with the graphics in this case.
I am a jQuery/Javascript/DOM novice, but was able to piece together an ugly solution for starters,
HTML
<!-- tabs -->
<ul class="tabs currenttab-info">
<li id="tab-info" class="info"><strong>Information</strong></li>
<li id="tab-write" class="write"><strong>Write Feedback</strong></li>
<li id="tab-read" class="read"><strong>Read Feedback</strong></li>
</ul>
Javascript
// send '.currenttab-x' to '.tabs' and remove '.currenttab-y' + '.currenttab-z'
// when LI #tab-X is clicked ...
$( '#tab-info' ).click(function() {
// ... find the UL and remove the first possible conflicting class
$('.tabs').removeClass("currenttab-read");
// ... find the UL and remove the other possible conflicting class
$('.tabs').removeClass("currenttab-write");
// ... find the UL and add the class for this LI
$('.tabs').addClass("currenttab-info");
});
// ... repeat ...
$( '#tab-write' ).click(function() {
$('.tabs').removeClass("currenttab-info");
$('.tabs').removeClass("currenttab-read");
$('.tabs').addClass("currenttab-write");
});
$( '#tab-read' ).click(function() {
$('.tabs').removeClass("currenttab-info");
$('.tabs').removeClass("currenttab-write");
$('.tabs').addClass("currenttab-read");
});
This actually seems to be working, BUT it's a fumbling solution and I am sure there is a better way. Some of you jQuery ninjas will know how to put this functionality together really elegantly, any help?
Also I would like to add onto this so that the clicked LI is also given a class to show it is selected while the other LIs are stripped of any such class. The same sort of thing I already am doing for the UL; I can see how to do that with my awkward approach, but it will mean even more and more lines of messy code. If your improvement also included a way to do change classes of the LIs I'd appreciate it
FYI: I'm using jQuery Tools Tabs with this so there is more jQuery then I showed, but only the bit I quoted seems relevant.
html
I will remove ids of li if you are not using it for other purposes.
<ul class="tabs currenttab-info">
<li class="info"><strong>Information</strong></li>
<li class="write"><strong>Write Feedback</strong></li>
<li class="read"><strong>Read Feedback</strong></li>
</ul>
jQuery
$('.tabs li').click(function() {
var $li = $(this);
$li.addClass('current').siblings().removeClass('current'); // adds a current class to the clicked li
var $ul = $li.parent();
$ul.removeClass("currenttab-info currenttab-read currenttab-write")
.addClass("currenttab-" + this.class ); // assuming li only holds one class e.g. class="write"
});
You can just do something like this:
$('.tabs > li').click(function() {
$(this).parent().attr('class', 'tabs').addClass('currenttab-'+$(this).attr('class'));
});
$("UL.tabs LI A").bind('click',function(e){ //bind a Click-Event handler to the Links
var $target = $(e.target); //the jQuery-Object-Reference to the clicked target ( $(this) should work too)
var LIClasses = $target.parents('LI').attr('class'); //A list of all Classes the parrent LI of the clicked Link have
$target
.parents('UL.tabs')
//now you can remove and add classes to the parent "UL.tabs"
.removeClass('...')
.addClass('...')
.end() //after .end() the chain for .parents-match is broken
.parents('LI')
//here you can add and remove classes from the parent LI
.removeClass('...')
.addClass('...')
.end() //after .end() the chain for .parents-match is broken
;
});
Notes:
jQuery is chainable.
.removeClass() and .addClass() can work with multiple classnames at the same time by speration with a space (like .removeClass('class1 class2'))
The full solution:
var relevantClasses = ['read','write','info'];
$("UL.tabs LI A").bind('click',function(e){
var $target = $(e.target);
var relevantClass = '';
for( var cl in $target.parents('LI').attr('class').split(' ') )
if( jQuery.inArray(relevantClasses , cl) > -1 ){
relevantClass = cl;
break;
}
$target
.parents('UL.tabs')
.removeClass(jQuery.map(relevantClasses , function (className) { return 'currenttab-' + className; }).join(' '))
.addClass('currenttab-'+relevantClass )
.end()
;
});
First of all you can chain the method calls...
$('.tabs').removeClass("currenttab-read currenttab-write").addClass("currenttab-write");
This would make the code much cleaner...
EDIT: I'll try such things in Fiddle http://jsfiddle.net/JvtAz/

remove class from current group

The easiest way to see the problem is checking the code here: http://www.studioimbrue.com/beta
What I need to do is once a thumbnail is clicked, to removed the "selected" class from all other thumbnails that are in this same or without removing them from the other galleries on the page. Right now, I have everything working except the class removal. Someone helped me in another question but wasn't quite specific enough (my javascript skills aren't all that great!) I'm using jQuery. Thanks for the help.
Well in that case, I'm not sure why this doesn't work properly:
$(document).ready(function(){
var activeOpacity = 1.0,
inactiveOpacity = 0.6,
fadeTime = 100,
clickedClass = "selected",
thumbs = ".thumbscontainer ul li img";
$(thumbs).fadeTo(1, inactiveOpacity);
$(thumbs).hover(
function(){
$(this).fadeTo(fadeTime, activeOpacity);
},
function(){
// Only fade out if the user hasn't clicked the thumb
if(!$(this).hasClass(clickedClass)) {
$(this).fadeTo(fadeTime, inactiveOpacity);
}
});
$(thumbs).click(function() {
// Remove selected class from any elements other than this
var previous = $(thumbs+'.'+clickedClass).eq();
var clicked = $(this);
if(clicked !== previous) {
previous.removeClass(clickedClass);
}
clicked.addClass(clickedClass).fadeTo(fadeTime, activeOpacity);
});
});
I see you're using jQuery (and have edited your question accordingly).
With jQuery, it's really easy to get a list of matching elements using CSS syntax:
var list = $('#parentId > .selected');
That gets a list of the direct children of the element with the ID "parentId" that have the class "selected". You can then do things with them, such as:
list.removeClass("selected");
Then add "selected" to the element you want to select.
Edit I think this should do it:
$(thumbs).click(function() {
// Remove selected class from any elements other than this
var clicked, previous;
clicked = $(this);
if (!clicked.hasClass(clickedClass)) {
previous = $(thumbs+'.'+clickedClass);
previous.removeClass(clickedClass).fadeTo(fadeTime, inactiveOpacity);
clicked.addClass(clickedClass).fadeTo(fadeTime, activeOpacity);
}
});
I'm assuming there that the "selected" class isn't necessary for the fade effect to look right.
Note how the above will completely ignore the click if the clicked element already has the class. If you don't want that, remove the hasClass check and add .not(clicked) to the end of the previous = $(thumbs+'.'+clickedClass) line, but I don't know what your fade in would do at that point if you've already done it once.
I'm not getting the hover stuff; I thought you wanted this to happen on click, not hover.
You should take a look at
jQuery.removeClass()
So the point would be to first iterate trough all the images and unset the classname and than set the class on the active one.
Use .closest('.jcarousel-clip') to get the parent div,
then find all the thumbnails and use .removeClass('selected').
Hi Andy it isn't clear your question, but I am going to try to help you.
I am trying to help, and my skills on javascript arent that good either, plus I am not sure if I undertood the question right, please, dont vote me down.
function focusme(){
document.getElementById("focusme").focus();
}
function changeToCurrent(obj){
var menucont = document.getElementById('menu');
var arrLink = menucont.getElementsByTagName('a');
for (var i = 0 ; i < arrLink.length; i++){
arrLink[i].className='';
}
obj.className = "current";
}
<div class="menu" id="menu" >
<a href='' id='focusme' onclick='changeToCurrent(this)'>link1</a>
<a href='' onclick='changeToCurrent(this)'>Once Only link2</a>
<a href='' onclick='changeToCurrent(this)'>link3</a>
<a href='' onclick='changeToCurrent(this)'>link4</a>
<a href='' onclick='changeToCurrent(this)'>link5</
link6
</div>
Hope it helps.

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