Written the following code to get the required result:
html file:
<div class="container">
<img id="myImg" class="img-fluid img-thumbnail" src="cat.jpg" alt="cat img">
</div>
JS File:
$(function() {
let i = 0;
$('#myImg').click(function() {
$(this).html(i++);
});
});
But, the console show error as follows:
Uncaught ReferenceError: $ is not defined
at script.js:1
Could you please help me to resolve this problem and explain to me why does this happen. And how can I know the number of click increment or not?
Click here for codepen link of my work.
Uncomment your link to jquery file i.e <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> and include your script.js after jQuery file. You are getting error because your <script src="script.js"></script> is before jquery. All you JavaScript which use jQuery must be after your jQuery file.
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<link rel="stylesheet" href="style.css">
<title>Click Cat | Sofia </title>
</head>
<body>
<div class="container">
<img id="myImg" class="img-fluid img-thumbnail" src="http://www.petsworld.in/blog/wp-content/uploads/2014/09/adorable-cat.jpg" alt="cat img">
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<!-- Optional JavaScript -->
<script src="script.js"></script>
<script>
$(function(){
let i=0;
$('#myImg').click(function(){
$(this).html(i++);
console.log(i);
});
});
</script>
</body>
</html>
$(document).ready(function(){
var i = 1;
$('#myImg').click(function(){
alert(i++); // here you can use html or whatever you want.
});
});
remove the alert and use whatever you want
It looks like you are trying to use jQuery in your javascript code, but you may not have properly included the jquery script file in your HTML.
You can load it in the head of your document from a cdn like this:
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
After the jQuery script is included, you may want to modify your HTML to have an element that will hold the count (not the img element):
<div class="container">
<span id="click-counter">0</span>
<img id="myImg" class="img-fluid img-thumbnail" src="cat.jpg" alt="cat img">
</div>
Then adjust your js code:
$(function() {
let i = 0;
$('#myImg').click(function() {
i++;
$('#click-counter').text(i);
});
});
Here is a fiddle:
https://jsfiddle.net/2zxmhub4/1/
Related
I am trying to change pages on in my project. I have two divs containing information and they each have a data-role of "page". In addition, they both have ids. On my js file I have a simple onclick event that calls a function that then uses the
$.mobile.changePage("#2");
To go from my first div to my second div. The only problem is whenever I try to change the page I am getting an error:
Uncaught TypeError: Cannot read property 'changePage' of undefined
I have already searched on other peoples posts on stack overflow and haven't found anything that can help me. Here is some of my code:
global.html
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0,
maximum-scale=1.0, user-scalable=no">
<script src="js/lib/jquery-2.1.4.js"></script>
<link rel="stylesheet" type="text/css" href="css/lib/jquery.mobile-
1.4.5.css">
<script src="js/global.js"></script>
<script src="js/lib/jquery.mobile-1.4.5.js"></script>
<script src="js/p5.min.js"></script>
<script src="http://code.jquery.com/jquery.min.js"></script>
<script src="http://code.jquery.com/ui/1.8.21/jquery-ui.min.js">
</script>
</head>
<body>
<div data-role="page" id="1" style="background-color: #56f0b1;">
<button id ="startGame" type="button">Start Game</button>
</div>
<div data-role="page" id="2" style="background-color: #56f0b1;">
<h2>Page 2 </h2>
</div>
</body>
</html>
global.js
$(document).ready(function () {
$("#startGame").on("click",getToNextPage);
});
function getToNextPage(){
$.mobile.changePage("#2");
}
As mentioned in comments, the core jQuery library must be loaded before jQuery Mobile.
In your code, it seems you're loading two jQuery versions and one of them is loaded after jQuery Mobile.
Also, according to comments in this question, the page IDs should not be only numeric.
Here's an example:
$(document).ready(function() {
$("#startGame").on("click", getToNextPage);
});
function getToNextPage() {
$.mobile.changePage("#page2");
}
<link rel="stylesheet" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css">
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<script src="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
<div data-role="page" id="page1" style="background-color: #56f0b1;">
<button id="startGame" type="button">Start Game</button>
</div>
<div data-role="page" id="page2" style="background-color: #56f0b1;">
<h2>Page 2 </h2>
</div>
I want to create a slider in a html file with this bootstrap api, but it keeps showing `jquery-3.1.1.slim.min.js:2 jQuery.Deferred exception: $(...).Slider is not a function TypeError:
$(...).Slider is not a function
at HTMLDocument.<anonymous> (file:///Users/apple/Desktop/pjt/index.html:35:18)
at j (https://code.jquery.com/jquery-3.1.1.slim.min.js:2:30164)
at k (https://code.jquery.com/jquery-3.1.1.slim.min.js:2:30478) undefined
r.Deferred.exceptionHook # jquery-3.1.1.slim.min.js:2
k # jquery-3.1.1.slim.min.js:2
jquery-3.1.1.slim.min.js:2 Uncaught TypeError: $(...).Slider is not a function
at HTMLDocument.<anonymous> (index.html:35)
at j (jquery-3.1.1.slim.min.js:2)
at k (jquery-3.1.1.slim.min.js:2)`
I downloaded both js and css files from here.
this is my code:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<link rel="stylesheet" href="assets/css/bootstrap-slider.css">
<link rel="stylesheet" href="assets/css/style.css">
</head>
<body>
<header class="nav-header">
</header>
<div class="container">
<div class="row">
<div class="left_section">
<input id="ex6" type="text" data-slider-min="-5" data-slider-max="20" data-slider-step="1" data-slider-value="3"/>
<span id="ex6CurrentSliderValLabel">Current Slider Value: <span id="ex6SliderVal">3</span></span>
</div>
<div class="middle_section">
</div>
<div class="right_section">
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="assets/js/bootstrap-slider.js"></script>
<script>
$(document).ready(function() {
$("#ex6").Slider(); // I also tried .slider()
$("#ex6").on("slide", function(slideEvt) {
$("#ex6SliderVal").text(slideEvt.value);
});
})
</script>
</body>
</html>
I also tried to use CDN to replace the local js and css but nothing changes
Like a slider documentation -- You have 2 ways to use it
var mySlider = new Slider('#ex6');
OR
$('#ex6').slider();
Working example using .slider
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-slider/9.8.0/css/bootstrap-slider.css">
<link rel="stylesheet" href="assets/css/style.css">
</head>
<body>
<header class="nav-header">
</header>
<div class="container">
<div class="row">
<div class="left_section">
<input id="ex6" type="text" data-slider-min="-5" data-slider-max="20" data-slider-step="1" data-slider-value="3"/>
<span id="ex6CurrentSliderValLabel">Current Slider Value: <span id="ex6SliderVal">3</span></span>
</div>
<div class="middle_section">
</div>
<div class="right_section">
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-slider/9.8.0/bootstrap-slider.js"></script>
<script>
$(document).ready(function() {
$('#ex6').slider();
$("#ex6").on("slide", function(slideEvt) {
$("#ex6SliderVal").text(slideEvt.value);
});
})
</script>
</body>
</html>
working example using var myslider = new Slider('#ex6')
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-slider/9.8.0/css/bootstrap-slider.css">
<link rel="stylesheet" href="assets/css/style.css">
</head>
<body>
<header class="nav-header">
</header>
<div class="container">
<div class="row">
<div class="left_section">
<input id="ex6" type="text" data-slider-min="-5" data-slider-max="20" data-slider-step="1" data-slider-value="3"/>
<span id="ex6CurrentSliderValLabel">Current Slider Value: <span id="ex6SliderVal">3</span></span>
</div>
<div class="middle_section">
</div>
<div class="right_section">
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-slider/9.8.0/bootstrap-slider.js"></script>
<script>
$(document).ready(function() {
var mySlider = new Slider('#ex6');
$("#ex6").on("slide", function(slideEvt) {
$("#ex6SliderVal").text(slideEvt.value);
});
})
</script>
</body>
</html>
Note: On my examples I used slider CDN so if your code
not working with your css , js paths you can use CDN instead or check
your paths
Alright, I apologize for not writing my question clearly, so the issue is not from the html file, but from the framework that I am working on.
Since I was using electron, if you just load the html code, the application can not recognize the js files in the html unless you add the following code before and after your scripts.
<!-- Insert this line above script imports -->
<script>if (typeof module === 'object') {window.module = module; module = undefined;}</script>
<!-- normal script imports etc -->
<script src="scripts/jquery.min.js"></script>
<script src="scripts/vendor.js"></script>
<!-- Insert this line after script imports -->
<script>if (window.module) module = window.module;</script>
Here's the source of the solution on this issue
Write slider instead of Slider
$("#ex6").slider();
And make sure the bootstrap-slider.js file is placed in assets/js/ folder
Not sure why my fancy box isn't working. Hoping someone can help
HTML Code:
<div class ="homeimage">
<a class ="fancybox" rel="group" href ="images\image9.jpg"><img src ="images\image9.jpg" alt ="Photo by Tom Harper"/></a>
</div>
Import and JavaScript Code:
<head>
<title>Tom Harper - Videographer</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<!-- Add jQuery library -->
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
<!-- Add mousewheel plugin (this is optional) -->
<script type="text/javascript" src="fancybox/lib/jquery.mousewheel-3.0.6.pack.js"></script>
<!-- Add fancyBox -->
<link rel="stylesheet" href="fancybox/source/jquery.fancybox.css?v=2.1.5" type="text/css" media="screen" />
<script type="text/javascript" src="fancybox/source/jquery.fancybox.pack.js?v=2.1.5"></script>
<!-- Optionally add helpers - button, thumbnail and/or media -->
<link rel="stylesheet" href="fancybox/source/helpers/jquery.fancybox-buttons.css?v=1.0.5" type="text/css" media="screen" />
<script type="text/javascript" src="fancybox/source/helpers/jquery.fancybox-buttons.js?v=1.0.5"></script>
<script type="text/javascript" src="fancybox/source/helpers/jquery.fancybox-media.js?v=1.0.6"></script>
<link rel="stylesheet" href="fancybox/source/helpers/jquery.fancybox-thumbs.css?v=1.0.7" type="text/css" media="screen" />
<script type="text/javascript" src="fancybox/source/helpers/jquery.fancybox-thumbs.js?v=1.0.7"></script>
<script type="text/javascript">
$(document).ready(function() {
$(".fancybox").fancybox();
});
The folder which contains all the fancybox files is in the same directory as the webpage. All that happens when I click the image is that the image opens in a new page because of the <a> tags that are now reference the image.
First: Download the Fancybox plugin here
secondly: unzip fancybox plugin and implement into your header.
exp...: link rel="stylesheet" href="fancybox/source/jquery.fancybox.css?v=2.1.5" type="text/css" media="screen" "fancybox" is my
unpacked plugin directory.
thirdly: Follow this Documentation or just copy and paste HTML and JavaScript part.
and it will work.
<script type="text/javascript">
$(document).ready(function() {
$("#single_1").fancybox({
helpers: {
title : {
type : 'float'
}
}
});
});
</script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<html>
<head>
<title>Tom Harper - Videographer</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<!-- Add jQuery library -->
<!-- Add mousewheel plugin (this is optional) -->
<!-- Add fancyBox -->
<!-- Optionally add helpers - button, thumbnail and/or media -->
</head>
<script type="text/javascript">
$(document).ready(function() {
$("#single_1").fancybox({
helpers: {
title : {
type : 'float'
}
}
});
});
</script>
<body>
<a id="single_1" href="http://farm2.staticflickr.com/1661/24170619595_ca34ef74d9_b.jpg" title="Bos 3 (p.vanhaastrecht)">
<img src="http://farm2.staticflickr.com/1661/24170619595_ca34ef74d9_m.jpg" alt="" />
</a>
</body>
</html>
I have a page that is using JavaScript to play mp3 files. The script has its own CSS which controls the look of that specific code. I have another CSS file that controls the look of the overall page. I need this script to fall in my container <div> to keep my pages looking consistent. The script's CSS is correctly altering the JavaScript and the global CSS is also impacting the overall page. The only problem is that the script code ignores the CSS which places it inside the container and content divs. Hence this script shows at the bottom when it should be inside the container before my footer.
How can I get this script to still follow the CSS from the overall page so all my pages are structured the same? When I take out the script code and just type some words, the text shows up in the correct place on the website.
HTML is something like this:
<html>
<head>
<title>My Title</title>
<link rel="stylesheet" type="text/css" href="global.css" />
<link rel="stylesheet" type="text/css" href="plugin/css/style.css">
<script type="text/javascript" src="js/jquery-1.6.1.min.js"></script>
<script type="text/javascript" src="plugin/jquery-jplayer/jquery.jplayer.js"></script>
<script type="text/javascript" src="plugin/ttw-music-player-min.js"></script>
<script type="text/javascript" src="js/myplaylist.js"></script>
</head>
<body>
<div id="container">
<div id="header">
//header code
</div>
<div id="nav">
<ul>
//Navigation code
</ul>
</div>
<div id="content">
<script type="text/javascript">
$(document).ready(function(){
var description = 'Example text'
$('body').ttwMusicPlayer(myPlaylist, {
autoPlay:false,
description:description,
jPlayer:{
swfPath:'plugin/jquery-jplayer'
}
});
});
</script>
</div>
<div id="footer">
Copyright 2016
</div>
</div>
</body>
</html>
I think this is what you're looking for. Place the script tag somewhere other than the content (end of the file is usually good... or in a separate file... your choice) and attach the music player to the #content div:
<head>
<title>My Title</title>
<link rel="stylesheet" type="text/css" href="global.css" />
<link rel="stylesheet" type="text/css" href="plugin/css/style.css">
<script type="text/javascript" src="js/jquery-1.6.1.min.js"></script>
<script type="text/javascript" src="plugin/jquery-jplayer/jquery.jplayer.js"></script>
<script type="text/javascript" src="plugin/ttw-music-player-min.js"></script>
<script type="text/javascript" src="js/myplaylist.js"></script>
</head>
<body>
<div id="container">
<div id="header">
<!-- header code -->
</div>
<div id="nav">
<ul>
<!-- Navigation code -->
</ul>
</div>
<div id="content">
<!-- content goes here -->
</div>
<div id="footer">
Copyright 2016
</div>
</div>
<script type="text/javascript">
$(document).ready(function() {
var description = 'Example text'
$('#content').ttwMusicPlayer(myPlaylist, {
autoPlay: false,
description: description,
jPlayer: {
swfPath: 'plugin/jquery-jplayer'
}
});
});
</script>
</body>
when loading the page , my console says:
$('.carousel').carousel is not a function
the generated html source code (i use symfony & twig files) look like this :
<body>
<div class="container">
<div class="row">
<div class="span6 well">
<div id="myCarousel" class="carousel">
<!-- Carousel items -->
<div class="carousel-inner">
<div class="active item"><img alt="" src="/projet_etienne_auth/web/bundles/etiennepsav/images/carousel1.jpg"></div>
<div class="item"><img alt="" src="/projet_etienne_auth/web/bundles/etiennepsav/images/carousel2.jpg"></div>
</div>
<!-- Carousel nav -->
<a class="carousel-control left" href="#myCarousel" data-slide="prev">‹</a>
<a class="carousel-control right" href="#myCarousel" data-slide="next">›</a>
</div>
</div>
</div>
</div>
<!-- Le javascript
================================================== -->
<script rel="javascript" href="/projet_etienne_auth/web/bundles/etiennepsav/js/bootstrap.js" type="text/javascript" media="all" ></script>
<script rel="javascript" href="/projet_etienne_auth/web/bundles/etiennepsav/js/jquery-1.8.3.js" type="text/javascript" media="all" ></script>
<script rel="javascript" href="/projet_etienne_auth/web/bundles/etiennepsav/js/bootstrap-carousel.js" type="text/javascript" media="all" ></script>
<script rel="javascript" href="/projet_etienne_auth/web/bundles/etiennepsav/js/bootstrap-transition.js" type="text/javascript" media="all" ></script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('.carousel').carousel() ;
});
</script>
Would anyone spot what's wrong?
cheers
change your javascript at the end to the following..
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script rel="javascript" href="/projet_etienne_auth/web/bundles/etiennepsav/js/bootstrap.js" type="text/javascript" media="all" ></script>
<script type="text/javascript">
$(document).ready(function() {
$('.carousel').carousel();
});
</script>
the jquery library needs to be the first script file included, then the bootstrap.js file.
Only include the following script files if you didnt include them all within the bootstrap download package..
<script rel="javascript" href="/projet_etienne_auth/web/bundles/etiennepsav/js/bootstrap-transition.js" type="text/javascript" media="all" ></script>
<script rel="javascript" href="/projet_etienne_auth/web/bundles/etiennepsav/js/bootstrap-carousel.js" type="text/javascript" media="all" ></script>
There seems to be a double entry to your jquery libraries.
Also, move the jquery.min or jquery-1.8.3 to the first line (and remove one of them too, because they are essentially the same).
at the end i have downloaded again boostrap.js including the carousel at
http://twitter.github.com/bootstrap/customize.html
put in my html head like this
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script rel="javascript" href="{{ asset('bundles/etiennepsav/js/bootstrap.js') }}" type="text/javascript" media="all" ></script>
<script type="text/javascript">
$(document).ready(function() {
$('.carousel').carousel();
});
</script>
i have deleted the whole web folder from my symfony projet
then reloaded it using the console command
php app/console assets:install web