Get index of anchor/hash

Get index of anchor/hash - javascript

I'm killing my self here.
When I type in index.html#about (or favorite it and open it) i want to get the index() of this, and insert it in the below script as "slideNumber".
Markup
<div id="slideshow">
<div id="frontpage">
<div id="About">
<div id="Contact">
</div>
jQuery
$(window).bind('hashchange', function () { //detect hash change
var hash = window.location.hash.slice(1); //hash to string (= "myanchor")
$('.slideshow').cycle(slideNumber); //Slideshow-number
});
"#about" would be 2 and "#contact" would be 3 and so on.
How do I do this??

Something simple like this should work on the page load:
if(window.location.hash != undefined) {
var slideNumber = $(window.location.hash).index() + 1;
}
If you're navigating through the page, you can do your bind and do the index() call inside so that when the hash changes, it'll update:
$(window).bind('hashchange', function () { //detect hash change
var slideNumber = $(window.location.hash).index(); //slideNumber
$('.slideshow').cycle(slideNumber); //Slideshow-number
});

Give this a try
var slideNumber = $("div#" + window.location.hash.slice(1)).prevAll().length

slides = {frontpage: 1, about: 2, contact: 3};
$('.slideshow').cycle(slides[hash]);
To make it dynamic you could use something like this, I guess:
$('#slideshow>div').each(function(i) {
if(this.id == hash) {
$('.slideshow').cycle(i);
}
}
or
$('.slideshow').cycle($('#slideshow>div').index(hash) + 1);

Related

Link to tab from another page [duplicate]

I'm developing a web page in which I'm using Twitter's Bootstrap Framework and their Bootstrap Tabs JS. It works great except for a few minor issues, one of which is I do not know how go directly to a specific tab from an external link. For example:
Home
Notes
should go to the Home tab and the Notes tab respectively when clicked on the links from an external page

Here is my solution to the problem, a bit late perhaps. But it could maybe help others:
// Javascript to enable link to tab
var hash = location.hash.replace(/^#/, ''); // ^ means starting, meaning only match the first hash
if (hash) {
$('.nav-tabs a[href="#' + hash + '"]').tab('show');
}
// Change hash for page-reload
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash;
})

UPDATE
For Bootstrap 3, change .on('shown', ...) to .on('shown.bs.tab', ....)
This is based off of #dubbe answer and this SO accepted answer. It handles the issue with window.scrollTo(0,0) not working correctly. The problem is that when you replace the url hash on tab shown, the browser will scroll to that hash since its an element on the page. To get around this, add a prefix so the hash doesn't reference an actual page element
// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "tab_";
if (hash) {
$('.nav-tabs a[href="'+hash.replace(prefix,"")+'"]').tab('show');
}
// Change hash for page-reload
$('.nav-tabs a').on('shown', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
Example of use
If you have tab-pane with id="mytab" you need to put your link like this:
Go to Specific Tab

you could trigger a click event on the corresponding tab link:
$(document).ready(function(){
if(window.location.hash != "") {
$('a[href="' + window.location.hash + '"]').click()
}
});

This is an improved implementation of dubbe's solution which prevent scrolling.
// Javascript to enable link to tab
var url = document.location.toString();
if (url.match('#')) {
$('.nav-tabs a[href="#'+url.split('#')[1]+'"]').tab('show') ;
}
// With HTML5 history API, we can easily prevent scrolling!
$('.nav-tabs a').on('shown.bs.tab', function (e) {
if(history.pushState) {
history.pushState(null, null, e.target.hash);
} else {
window.location.hash = e.target.hash; //Polyfill for old browsers
}
})

While the JavaScript solution provided may work, I went a slightly different way that requires no additional JavaScript, but does require logic in your view. You create a link with a standard URL parameter, like:
My Link
Then you simply detect the value of activeTab to write 'class="active"' in the appropriate <li>
Pseudocode (implement accordingly in your language). Note I've set 'home' tab as a default active if no parameter provided in this example.
$activetabhome = (params.activeTab is null or params.activeTab == 'home') ? 'class="active"' : '';
$activetabprofile = (params.activeTab == 'profile') ? 'class="active"' : '';
<li $activetabhome>Home</li>
<li $activetabprofile>Profile</li>

I am not a big fan of if...else; so I took a simpler approach.
$(document).ready(function(event) {
$('ul.nav.nav-tabs a:first').tab('show'); // Select first tab
$('ul.nav.nav-tabs a[href="'+ window.location.hash+ '"]').tab('show'); // Select tab by name if provided in location hash
$('ul.nav.nav-tabs a[data-toggle="tab"]').on('shown', function (event) { // Update the location hash to current tab
window.location.hash= event.target.hash;
})
});
Pick a default tab (usually the first)
Switch to tab (if such an element is indeed present; let jQuery handle it); Nothing happens if a wrong hash is specified
[Optional] Update the hash if another tab is manually chosen
Doesn't address scrolling to requested hash; but should it?

For Bootstrap 3:
$('.nav-tabs a[href="#' + tabID + '"]').tab('show');
https://jsfiddle.net/DTcHh/6638/

This works in Bootstrap 3 and improves dubbe and flynfish 's 2 top answers by integrating GarciaWebDev 's answer as well (which allows for url parameters after the hash and is straight from Bootstrap authors on the github issue tracker):
// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "tab_";
if (hash) {
hash = hash.replace(prefix,'');
var hashPieces = hash.split('?');
activeTab = $('.nav-tabs a[href=' + hashPieces[0] + ']');
activeTab && activeTab.tab('show');
}
// Change hash for page-reload
$('.nav-tabs a').on('shown', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});

Building on Demircan Celebi's solution; I wanted the tab to open when modifying the url and open tab without having to reload the page from the server.
<script type="text/javascript">
$(function() {
openTabHash(); // for the initial page load
window.addEventListener("hashchange", openTabHash, false); // for later changes to url
});
function openTabHash()
{
console.log('openTabHash');
// Javascript to enable link to tab
var url = document.location.toString();
if (url.match('#')) {
$('.nav-tabs a[href="#'+url.split('#')[1]+'"]').tab('show') ;
}
// With HTML5 history API, we can easily prevent scrolling!
$('.nav-tabs a').on('shown.bs.tab', function (e) {
if(history.pushState) {
history.pushState(null, null, e.target.hash);
} else {
window.location.hash = e.target.hash; //Polyfill for old browsers
}
})
}
</script>

Just insert this code on your page:
$(function(){
var hash = window.location.hash;
hash && $('ul.nav a[href="' + hash + '"]').tab('show');
$('.nav-tabs a').click(function (e) {
$(this).tab('show');
var scrollmem = $('body').scrollTop();
window.location.hash = this.hash;
$('html,body').scrollTop(scrollmem);
});
});

This code selects the right tab depending on the #hash and adds the right #hash when a tab is clicked. (this uses jquery)
In Coffeescript :
$(document).ready ->
if location.hash != ''
$('a[href="'+location.hash+'"]').tab('show')
$('a[data-toggle="tab"]').on 'shown', (e) ->
location.hash = $(e.target).attr('href').substr(1)
or in JS :
$(document).ready(function() {
if (location.hash !== '') $('a[href="' + location.hash + '"]').tab('show');
return $('a[data-toggle="tab"]').on('shown', function(e) {
return location.hash = $(e.target).attr('href').substr(1);
});
});

$(function(){
var hash = window.location.hash;
hash && $('ul.nav a[href="' + hash + '"]').tab('show');
});
This code from http://github.com/twitter/bootstrap/issues/2415#issuecomment-4450768 worked for me perfectly.

#flynfish + #Ztyx solution that I use for nested tabs:
handleTabLinks();
function handleTabLinks() {
if(window.location.hash == '') {
window.location.hash = window.location.hash + '#_';
}
var hash = window.location.hash.split('#')[1];
var prefix = '_';
var hpieces = hash.split('/');
for (var i=0;i<hpieces.length;i++) {
var domelid = hpieces[i].replace(prefix,'');
var domitem = $('a[href=#' + domelid + '][data-toggle=tab]');
if (domitem.length > 0) {
domitem.tab('show');
}
}
$('a[data-toggle=tab]').on('shown', function (e) {
if ($(this).hasClass('nested')) {
var nested = window.location.hash.split('/');
window.location.hash = nested[0] + '/' + e.target.hash.split('#')[1];
} else {
window.location.hash = e.target.hash.replace('#', '#' + prefix);
}
});
}
childrens should have class="nested"

I came up with a solution that uses the url hash or localStorage depending on the availability of the latter with below code:
$(function(){
$(document).on('shown.bs.tab', 'a[data-toggle="tab"]', function (e) {
localStorage.setItem('activeTab', $(e.target).attr('href'));
})
var hash = window.location.hash;
var activeTab = localStorage.getItem('activeTab');
if(hash){
$('#project-tabs a[href="' + hash + '"]').tab('show');
}else if (activeTab){
$('#project-tabs a[href="' + activeTab + '"]').tab('show');
}
});

I would suggest you use the code provided by Bootstrap authors on their issue tracker on GitHub:
var hash = location.hash
, hashPieces = hash.split('?')
, activeTab = $('[href=' + hashPieces[0] + ']');
activeTab && activeTab.tab('show');
You can find on the link to the issue more information about why they didn't choose to support that.

Tried couple of ways discussed above and end up with following working solution, just copy and paste in your editor to try. To test just change hash to inbox, outbox, compose in url and hit enter key.
<html>
<head>
<link type='text/css' rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css' />
<script src="https://code.jquery.com/jquery-2.2.0.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container body-content">
<ul class="nav nav-tabs">
<li class="active"><a data-toggle="tab" href="#inbox">Inbox</a></li>
<li><a data-toggle="tab" href="#outbox">Outbox</a></li>
<li><a data-toggle="tab" href="#compose">Compose</a></li>
</ul>
<div class="tab-content">
<div id="inbox" class="tab-pane fade in active">
Inbox Content
</div>
<div id="outbox" class="tab-pane fade">
Outbox Content
</div>
<div id="compose" class="tab-pane fade">
Compose Content
</div>
</div>
</div>
<script>
$(function () {
var hash = window.location.hash;
hash && $('ul.nav a[href="' + hash + '"]').tab('show');
});
</script>
</body>
</html>
Hope this will save your time.

Here is what i did, really simple, and provided your tab links have an ID associated with them you can get the href attribute and pass that over to the function that shows the tab contents:
<script type="text/javascript">
jQuery(document).ready(function() {
var hash = document.location.hash;
var prefix = "tab_";
if (hash) {
var tab = jQuery(hash.replace(prefix,"")).attr('href');
jQuery('.nav-tabs a[href='+tab+']').tab('show');
}
});
</script>
Then in your url you can add the hash as something like: #tab_tab1, the 'tab_' part is removed from the hash itself so the ID of the actual tab link in the nav-tabs (tabid1) is placed after this, so your url would look something like: www.mydomain.com/index.php#tab_tabid1.
This works perfect for me and hope it helps someone else :-)

If it matters to anybody, the following code is small and works flawless, to get a single hash value from the URL and show that:
<script>
window.onload = function () {
let url = document.location.toString();
let splitHash = url.split("#");
if (splitHash[1]) {document.getElementById(splitHash[1]).click();}
};
</script>
what it does is it retrieves the id and fires the click event. Simple.

I just had this issue, but needed to handle multiple tab levels. The code is rather ugly (see comments), but does its job: https://gist.github.com/JensRantil/4721860 Hopefully someone else will find it useful (and feel free to propose better solutions!).

This is my solution to handle nested tabs.
I just added a function to check if the active tab has a parent tab to be activated.
This is the function:
function activateParentTab(tab) {
$('.tab-pane').each(function() {
var cur_tab = $(this);
if ( $(this).find('#' + tab).length > 0 ) {
$('.nav-tabs a[href=#'+ cur_tab.attr('id') +']').tab('show');
return false;
}
});
}
And can be called like this (Based on #flynfish's solution):
var hash = document.location.hash;
var prefix = "";
if (hash) {
$('.nav-tabs a[href='+hash.replace(prefix,"")+']').tab('show');
activateParentTab(hash);
}
// Change hash for page-reload
$('.nav-tabs a').on('shown', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
This solution works pretty fine to me at the moment.
Hope this can be useful for someone else ;)

I had to modify some bits for this to work for me.
I am using Bootstrap 3 and jQuery 2
// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "!";
if (hash) {
hash = hash.replace(prefix,'');
var hashPieces = hash.split('?');
activeTab = $('[role="tablist"] a[href=' + hashPieces[0] + ']');
activeTab && activeTab.tab('show');
}
// Change hash for page-reload
$('[role="tablist"] a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});

Combining peices from other answers, here is a solution that can open many levels of nested tabs:
// opens all tabs down to the specified tab
var hash = location.hash.split('?')[0];
if(hash) {
var $link = $('[href=' + hash + ']');
var parents = $link.parents('.tab-pane').get();
$(parents.reverse()).each(function() {
$('[href=#' + this.id + ']').tab('show') ;
});
$link.tab('show');
}

For Bootstrap 5.1 for redirecting to specific tab
var hash = location.hash.replace(/^#/, '');
if (hash) {
var someVarName = $('.nav-tabs a[href="#' + hash + '"]');
var tab = new bootstrap.Tab(someVarName);
tab.show();
}
Change hash for page-reload
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash;
window.scrollTo(0, 0);
})

I make sth like this for links with ajax #!# (e.g./test.com#!#test3) but you can modify it whatever you like
$(document).ready(function() {
let hash = document.location.hash;
let prefix = "!#";
//change hash url on page reload
if (hash) {
$('.nav-tabs a[href=\"'+hash.replace(prefix,"")+'\"]').tab('show');
}
// change hash url on switch tab
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
});
Example with simple page on Github here

I know this thread is very old, but I'll leave here my own implementation:
$(function () {
// some initialization code
addTabBehavior()
})
// Initialize events and change tab on first page load.
function addTabBehavior() {
$('.nav-tabs a').on('show.bs.tab', e => {
window.location.hash = e.target.hash.replace('nav-', '')
})
$(window).on('popstate', e => {
changeTab()
})
changeTab()
}
// Change the current tab and URL hash; if don't have any hash
// in URL, so activate the first tab and update the URL hash.
function changeTab() {
const hash = getUrlHash()
if (hash) {
$(`.nav-tabs a[href="#nav-${hash}"]`).tab('show')
} else {
$('.nav-tabs a').first().tab('show')
}
}
// Get the hash from URL. Ex: www.example.com/#tab1
function getUrlHash() {
return window.location.hash.slice(1)
}
Note that I'm using a nav- class prefix to nav links.

Building on Peter's answer, and incorporating https://stackoverflow.com/a/901144/1604205, here's the code in JS:
<script>
const params = new Proxy(new URLSearchParams(window.location.search), {
get: (searchParams, prop) => searchParams.get(prop),
});
$activetabhome = (params.activeTab === null || params.activeTab == 'home') ? 'class="active"' : '';
$activetabprofile = (params.activeTab == 'profile') ? 'class="active"' : '';
</script>
<li $activetabhome>Home</li>
<li $activetabprofile>Profile</li>

jquery cannot get div to show using this selector

I am querying the Twitch API for a list of users in my database, to see if they are online.
I am essentially listing them all, with "display: none" and then unhiding if online:
$('.online_list').each(function (index) {
var tnick = $(this).data('tnick');
$.getJSON("https://api.twitch.tv/kraken/streams?client_id={:twitch_key}&channel="+tnick+"", function(a) {
if (a["streams"].length > 0)
{
alert(tnick);
$(this).show();
console.log(index + ": " + $( this ).text());
}
});
});
In my testing, the alert(tnick) works perfectly, so I know it's running. The problem is $(this).show(); just isn't working.
Here's example HTML:
<div class="online_list" data-tnick="test" style="display: none;">test:Twitch <span>(Online)</span></div>
<div class="online_list" data-tnick="test2" style="display: none;">test2:Twitch <span>(Online)</span></div>

this is the current scope object!
to fix your code you can do the following:
$('.online_list').each(function (index) {
var $that = $(this); // create a temp var that
var tnick = $that.data('tnick');
$.getJSON("https://api.twitch.tv/kraken/streams?client_id={:twitch_key}&channel="+tnick+"", function(a) {
if (a && a["streams"] && a["streams"].length > 0) {
alert(tnick);
$that.show(); // use that instead of this
console.log(index + ": " + $that.text());
}
});
});
Check out this resource for more information on scope & this: http://javascriptplayground.com/blog/2012/04/javascript-variable-scope-this/

EDIT:
Also, like #djxak suggests, you can use the element parameter of the callback, that is more simple and clean in my opinion.
The #djxak suggests:
$('.online_list').each(function (index, element) {
//... (scope1 code)
$.getJSON("", function(a) {
//... (scope2 code)
$(element).show();
});
});
My approach:
$('.online_list').each(function (index) {
//... (scope1 code)
var $current = $(this);
$.getJSON("", function(a) {
//... (scope2 code)
$current.show();
});
});
Info about each function and element parameter in jQuery docs: https://api.jquery.com/each/#each-function

How to link to tabs with jtabs?

I added tabs to a section of my page I am working on (stridertechnologies.com/stoutwebsite/products.php)using the steps found at this website: http://code-tricks.com/create-a-simple-html5-tabs-using-jquery/
I want to link to the different tabs from the home page, but I am not sure how to do that outside of anchor names with html and that doesn't work with this, and there aren't any instructions on how to do it on the site.
It seems like there should be something really simple I can add to my javascript to detect which link they clicked on and make it the active tab.
javascript:
;(function($){
$.fn.html5jTabs = function(options){
return this.each(function(index, value){
var obj = $(this),
objFirst = obj.eq(index),
objNotFirst = obj.not(objFirst);
$("#" + objNotFirst.attr("data-toggle")).hide();
$(this).eq(index).addClass("active");
obj.click(function(evt){
toggler = "#" + obj.attr("data-toggle");
togglerRest = $(toggler).parent().find("div");
togglerRest.hide().removeClass("active");
$(toggler).show().addClass("active");
//toggle Active Class on tab buttons
$(this).parent("div").find("a").removeClass("active");
$(this).addClass("active");
return false; //Stop event Bubbling and PreventDefault
});
});
};
}(jQuery));

This answer is from a duplicated question here: https://stackoverflow.com/a/20811416/3123649.
You could pass the tab div id in the url from the link and use that to select.
Home page links from index.html:
tile
metal
Add this javascript to the tab page
<script type="text/javascript">
// To get parameter from url
function getParameterByName(name) {
name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);
return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}
$.extend($.expr[':'], {
attrNameStart: function (el, i, props) {
var hasAttribute = false;
$.each(el.attributes, function (i, attr) {
if (attr.name.indexOf(props[3]) !== -1) {
hasAttribute = true;
return false;
}
});
return hasAttribute;
}
});
// deselect tabs and select the tab by id
function focusTab(id) {
$("#tile").hide().removeClass("active");
$("#metal").hide().removeClass("active");
$("#shingle").hide().removeClass("active");
$("#flat").hide().removeClass("active");
$("#custom").hide().removeClass("active");
var toggle = $(id).parent().find("div");
toggle.hide().removeClass("active");
$('a:attrNameStart(data-toggle)').removeClass("active");
var id1 = getParameterByName("tabId");
var toggler = $('*[data-toggle=' + id1 + ']');
$(toggler).addClass("active");
$(id).show().addClass("active");
}
$(function() {
$(".tabs a").html5jTabs();
// Get the tab id from the url
var tabId = "#" + getParameterByName("tabId");
// Focus the tab
focusTab(tabId);
});
</script>
EDIT: Replace the original focusTab function with the edit. Also add the extend function attrNameStart. This should deselect the default active tab.
EDIT2: focusTab had a bug, it should work now
** I looked at your site and my solutions seems to be working for you. One thing I noticed. You initialize the html5jTabs() twice.
Remove the first call at the top
<script type="text/javascript">
$(function() {
$(".tabs a").html5jTabs();
});
</script>

How about something like this? Basically we are taking the value of data-toggle in our buttons, and passing it into the selector for each tab content
JS
$('a[data-toggle]').on('click', function () {
var dataToggle = $(this).data('toggle');
$('.tabContent > div').removeClass('active');
$('.tabContent > div#'+dataToggle+'').addClass('active');
});
working example:
http://jsfiddle.net/whiteb0x/VdeqY/

Adding variable at the end of URL using jQuery

So far I have done
jQuery:
function addURL(element)
{
var baseZipCode = 48180;
$(element).attr('href', function() {
return this.href + baseZipCode;
});
}
html:
<a onclick="addURL(this)" href="http://www.weather.com/weather/today/" target="_blank">Click this</a>
My problem is when user clicks on link and the new window open everything is ok, but when the user clicks on the link again without a refresh, the variable is added twice to the link.
For example:
First time:
http://www.weather.com/weather/today/48180
Second time:
http://www.weather.com/weather/today/4818048180
It doesn't act right until you do a page refresh, any help would be appreciated. Thanks in advance

Replace your addURL function with
function addURL(element)
{
var baseZipCode = '48180';
if (element.href.slice(-baseZipCode.length) !== baseZipCode){
element.href += baseZipCode;
}
}
there is no jQuery involved..

You can try it with jQuery.fn.one
Javascript:
jQuery("a").one("click", function(){ // Set a handler that execute once
var baseZipCode = 48180;
this.href += baseZipCode; //same as "this.href = this.href + baseZipCode"
});
HTML:
Click this
Maybe you will need to add some class to <a> tags to differ it from another ones

This should be:
function addURL(element)
{
var baseZipCode = 48180;
element.href = (element.href + baseZipCode)
.replace(baseZipCode + baseZipCode, baseZipCode);
}

return this.href.indexOf(baseZipCode) != -1 ? this.href : this.href + baseZipCode;

Twitter Bootstrap Tabs: Go to Specific Tab on Page Reload or Hyperlink

I'm developing a web page in which I'm using Twitter's Bootstrap Framework and their Bootstrap Tabs JS. It works great except for a few minor issues, one of which is I do not know how go directly to a specific tab from an external link. For example:
Home
Notes
should go to the Home tab and the Notes tab respectively when clicked on the links from an external page

Here is my solution to the problem, a bit late perhaps. But it could maybe help others:
// Javascript to enable link to tab
var hash = location.hash.replace(/^#/, ''); // ^ means starting, meaning only match the first hash
if (hash) {
$('.nav-tabs a[href="#' + hash + '"]').tab('show');
}
// Change hash for page-reload
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash;
})

UPDATE
For Bootstrap 3, change .on('shown', ...) to .on('shown.bs.tab', ....)
This is based off of #dubbe answer and this SO accepted answer. It handles the issue with window.scrollTo(0,0) not working correctly. The problem is that when you replace the url hash on tab shown, the browser will scroll to that hash since its an element on the page. To get around this, add a prefix so the hash doesn't reference an actual page element
// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "tab_";
if (hash) {
$('.nav-tabs a[href="'+hash.replace(prefix,"")+'"]').tab('show');
}
// Change hash for page-reload
$('.nav-tabs a').on('shown', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
Example of use
If you have tab-pane with id="mytab" you need to put your link like this:
Go to Specific Tab

you could trigger a click event on the corresponding tab link:
$(document).ready(function(){
if(window.location.hash != "") {
$('a[href="' + window.location.hash + '"]').click()
}
});

This is an improved implementation of dubbe's solution which prevent scrolling.
// Javascript to enable link to tab
var url = document.location.toString();
if (url.match('#')) {
$('.nav-tabs a[href="#'+url.split('#')[1]+'"]').tab('show') ;
}
// With HTML5 history API, we can easily prevent scrolling!
$('.nav-tabs a').on('shown.bs.tab', function (e) {
if(history.pushState) {
history.pushState(null, null, e.target.hash);
} else {
window.location.hash = e.target.hash; //Polyfill for old browsers
}
})

While the JavaScript solution provided may work, I went a slightly different way that requires no additional JavaScript, but does require logic in your view. You create a link with a standard URL parameter, like:
My Link
Then you simply detect the value of activeTab to write 'class="active"' in the appropriate <li>
Pseudocode (implement accordingly in your language). Note I've set 'home' tab as a default active if no parameter provided in this example.
$activetabhome = (params.activeTab is null or params.activeTab == 'home') ? 'class="active"' : '';
$activetabprofile = (params.activeTab == 'profile') ? 'class="active"' : '';
<li $activetabhome>Home</li>
<li $activetabprofile>Profile</li>

I am not a big fan of if...else; so I took a simpler approach.
$(document).ready(function(event) {
$('ul.nav.nav-tabs a:first').tab('show'); // Select first tab
$('ul.nav.nav-tabs a[href="'+ window.location.hash+ '"]').tab('show'); // Select tab by name if provided in location hash
$('ul.nav.nav-tabs a[data-toggle="tab"]').on('shown', function (event) { // Update the location hash to current tab
window.location.hash= event.target.hash;
})
});
Pick a default tab (usually the first)
Switch to tab (if such an element is indeed present; let jQuery handle it); Nothing happens if a wrong hash is specified
[Optional] Update the hash if another tab is manually chosen
Doesn't address scrolling to requested hash; but should it?

For Bootstrap 3:
$('.nav-tabs a[href="#' + tabID + '"]').tab('show');
https://jsfiddle.net/DTcHh/6638/

This works in Bootstrap 3 and improves dubbe and flynfish 's 2 top answers by integrating GarciaWebDev 's answer as well (which allows for url parameters after the hash and is straight from Bootstrap authors on the github issue tracker):
// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "tab_";
if (hash) {
hash = hash.replace(prefix,'');
var hashPieces = hash.split('?');
activeTab = $('.nav-tabs a[href=' + hashPieces[0] + ']');
activeTab && activeTab.tab('show');
}
// Change hash for page-reload
$('.nav-tabs a').on('shown', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});

Building on Demircan Celebi's solution; I wanted the tab to open when modifying the url and open tab without having to reload the page from the server.
<script type="text/javascript">
$(function() {
openTabHash(); // for the initial page load
window.addEventListener("hashchange", openTabHash, false); // for later changes to url
});
function openTabHash()
{
console.log('openTabHash');
// Javascript to enable link to tab
var url = document.location.toString();
if (url.match('#')) {
$('.nav-tabs a[href="#'+url.split('#')[1]+'"]').tab('show') ;
}
// With HTML5 history API, we can easily prevent scrolling!
$('.nav-tabs a').on('shown.bs.tab', function (e) {
if(history.pushState) {
history.pushState(null, null, e.target.hash);
} else {
window.location.hash = e.target.hash; //Polyfill for old browsers
}
})
}
</script>

Just insert this code on your page:
$(function(){
var hash = window.location.hash;
hash && $('ul.nav a[href="' + hash + '"]').tab('show');
$('.nav-tabs a').click(function (e) {
$(this).tab('show');
var scrollmem = $('body').scrollTop();
window.location.hash = this.hash;
$('html,body').scrollTop(scrollmem);
});
});

This code selects the right tab depending on the #hash and adds the right #hash when a tab is clicked. (this uses jquery)
In Coffeescript :
$(document).ready ->
if location.hash != ''
$('a[href="'+location.hash+'"]').tab('show')
$('a[data-toggle="tab"]').on 'shown', (e) ->
location.hash = $(e.target).attr('href').substr(1)
or in JS :
$(document).ready(function() {
if (location.hash !== '') $('a[href="' + location.hash + '"]').tab('show');
return $('a[data-toggle="tab"]').on('shown', function(e) {
return location.hash = $(e.target).attr('href').substr(1);
});
});

$(function(){
var hash = window.location.hash;
hash && $('ul.nav a[href="' + hash + '"]').tab('show');
});
This code from http://github.com/twitter/bootstrap/issues/2415#issuecomment-4450768 worked for me perfectly.

#flynfish + #Ztyx solution that I use for nested tabs:
handleTabLinks();
function handleTabLinks() {
if(window.location.hash == '') {
window.location.hash = window.location.hash + '#_';
}
var hash = window.location.hash.split('#')[1];
var prefix = '_';
var hpieces = hash.split('/');
for (var i=0;i<hpieces.length;i++) {
var domelid = hpieces[i].replace(prefix,'');
var domitem = $('a[href=#' + domelid + '][data-toggle=tab]');
if (domitem.length > 0) {
domitem.tab('show');
}
}
$('a[data-toggle=tab]').on('shown', function (e) {
if ($(this).hasClass('nested')) {
var nested = window.location.hash.split('/');
window.location.hash = nested[0] + '/' + e.target.hash.split('#')[1];
} else {
window.location.hash = e.target.hash.replace('#', '#' + prefix);
}
});
}
childrens should have class="nested"

I came up with a solution that uses the url hash or localStorage depending on the availability of the latter with below code:
$(function(){
$(document).on('shown.bs.tab', 'a[data-toggle="tab"]', function (e) {
localStorage.setItem('activeTab', $(e.target).attr('href'));
})
var hash = window.location.hash;
var activeTab = localStorage.getItem('activeTab');
if(hash){
$('#project-tabs a[href="' + hash + '"]').tab('show');
}else if (activeTab){
$('#project-tabs a[href="' + activeTab + '"]').tab('show');
}
});

I would suggest you use the code provided by Bootstrap authors on their issue tracker on GitHub:
var hash = location.hash
, hashPieces = hash.split('?')
, activeTab = $('[href=' + hashPieces[0] + ']');
activeTab && activeTab.tab('show');
You can find on the link to the issue more information about why they didn't choose to support that.

Tried couple of ways discussed above and end up with following working solution, just copy and paste in your editor to try. To test just change hash to inbox, outbox, compose in url and hit enter key.
<html>
<head>
<link type='text/css' rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css' />
<script src="https://code.jquery.com/jquery-2.2.0.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container body-content">
<ul class="nav nav-tabs">
<li class="active"><a data-toggle="tab" href="#inbox">Inbox</a></li>
<li><a data-toggle="tab" href="#outbox">Outbox</a></li>
<li><a data-toggle="tab" href="#compose">Compose</a></li>
</ul>
<div class="tab-content">
<div id="inbox" class="tab-pane fade in active">
Inbox Content
</div>
<div id="outbox" class="tab-pane fade">
Outbox Content
</div>
<div id="compose" class="tab-pane fade">
Compose Content
</div>
</div>
</div>
<script>
$(function () {
var hash = window.location.hash;
hash && $('ul.nav a[href="' + hash + '"]').tab('show');
});
</script>
</body>
</html>
Hope this will save your time.

Here is what i did, really simple, and provided your tab links have an ID associated with them you can get the href attribute and pass that over to the function that shows the tab contents:
<script type="text/javascript">
jQuery(document).ready(function() {
var hash = document.location.hash;
var prefix = "tab_";
if (hash) {
var tab = jQuery(hash.replace(prefix,"")).attr('href');
jQuery('.nav-tabs a[href='+tab+']').tab('show');
}
});
</script>
Then in your url you can add the hash as something like: #tab_tab1, the 'tab_' part is removed from the hash itself so the ID of the actual tab link in the nav-tabs (tabid1) is placed after this, so your url would look something like: www.mydomain.com/index.php#tab_tabid1.
This works perfect for me and hope it helps someone else :-)

If it matters to anybody, the following code is small and works flawless, to get a single hash value from the URL and show that:
<script>
window.onload = function () {
let url = document.location.toString();
let splitHash = url.split("#");
if (splitHash[1]) {document.getElementById(splitHash[1]).click();}
};
</script>
what it does is it retrieves the id and fires the click event. Simple.

I just had this issue, but needed to handle multiple tab levels. The code is rather ugly (see comments), but does its job: https://gist.github.com/JensRantil/4721860 Hopefully someone else will find it useful (and feel free to propose better solutions!).

This is my solution to handle nested tabs.
I just added a function to check if the active tab has a parent tab to be activated.
This is the function:
function activateParentTab(tab) {
$('.tab-pane').each(function() {
var cur_tab = $(this);
if ( $(this).find('#' + tab).length > 0 ) {
$('.nav-tabs a[href=#'+ cur_tab.attr('id') +']').tab('show');
return false;
}
});
}
And can be called like this (Based on #flynfish's solution):
var hash = document.location.hash;
var prefix = "";
if (hash) {
$('.nav-tabs a[href='+hash.replace(prefix,"")+']').tab('show');
activateParentTab(hash);
}
// Change hash for page-reload
$('.nav-tabs a').on('shown', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
This solution works pretty fine to me at the moment.
Hope this can be useful for someone else ;)

I had to modify some bits for this to work for me.
I am using Bootstrap 3 and jQuery 2
// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "!";
if (hash) {
hash = hash.replace(prefix,'');
var hashPieces = hash.split('?');
activeTab = $('[role="tablist"] a[href=' + hashPieces[0] + ']');
activeTab && activeTab.tab('show');
}
// Change hash for page-reload
$('[role="tablist"] a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});

Combining peices from other answers, here is a solution that can open many levels of nested tabs:
// opens all tabs down to the specified tab
var hash = location.hash.split('?')[0];
if(hash) {
var $link = $('[href=' + hash + ']');
var parents = $link.parents('.tab-pane').get();
$(parents.reverse()).each(function() {
$('[href=#' + this.id + ']').tab('show') ;
});
$link.tab('show');
}

For Bootstrap 5.1 for redirecting to specific tab
var hash = location.hash.replace(/^#/, '');
if (hash) {
var someVarName = $('.nav-tabs a[href="#' + hash + '"]');
var tab = new bootstrap.Tab(someVarName);
tab.show();
}
Change hash for page-reload
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash;
window.scrollTo(0, 0);
})

I make sth like this for links with ajax #!# (e.g./test.com#!#test3) but you can modify it whatever you like
$(document).ready(function() {
let hash = document.location.hash;
let prefix = "!#";
//change hash url on page reload
if (hash) {
$('.nav-tabs a[href=\"'+hash.replace(prefix,"")+'\"]').tab('show');
}
// change hash url on switch tab
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
});
Example with simple page on Github here

I know this thread is very old, but I'll leave here my own implementation:
$(function () {
// some initialization code
addTabBehavior()
})
// Initialize events and change tab on first page load.
function addTabBehavior() {
$('.nav-tabs a').on('show.bs.tab', e => {
window.location.hash = e.target.hash.replace('nav-', '')
})
$(window).on('popstate', e => {
changeTab()
})
changeTab()
}
// Change the current tab and URL hash; if don't have any hash
// in URL, so activate the first tab and update the URL hash.
function changeTab() {
const hash = getUrlHash()
if (hash) {
$(`.nav-tabs a[href="#nav-${hash}"]`).tab('show')
} else {
$('.nav-tabs a').first().tab('show')
}
}
// Get the hash from URL. Ex: www.example.com/#tab1
function getUrlHash() {
return window.location.hash.slice(1)
}
Note that I'm using a nav- class prefix to nav links.

Building on Peter's answer, and incorporating https://stackoverflow.com/a/901144/1604205, here's the code in JS:
<script>
const params = new Proxy(new URLSearchParams(window.location.search), {
get: (searchParams, prop) => searchParams.get(prop),
});
$activetabhome = (params.activeTab === null || params.activeTab == 'home') ? 'class="active"' : '';
$activetabprofile = (params.activeTab == 'profile') ? 'class="active"' : '';
</script>
<li $activetabhome>Home</li>
<li $activetabprofile>Profile</li>

Develop Reference

JavaScript is the programming language of the Web.

Get index of anchor/hash - javascript

Give this a try var slideNumber = $("div#" + window.location.hash.slice(1)).prevAll().length

slides = {frontpage: 1, about: 2, contact: 3}; $('.slideshow').cycle(slides[hash]); To make it dynamic you could use something like this, I guess: $('#slideshow>div').each(function(i) { if(this.id == hash) { $('.slideshow').cycle(i); } } or $('.slideshow').cycle($('#slideshow>div').index(hash) + 1);

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