I have this index.html and login.html and I use a href to link from index to login. and in each index.html and login.html I import the javascript. However, it seems that only the ones come from index.html that is being loaded. so if I place the js in index.html for the login.html, it works fine. but then, we I place it separately ( another js for login.html that is not in index.html) , it doesnt work
TIA
When JQM(jQuery mobile) loads a page it uses ajax to accomplish this. When this happens all code in the <head> section is ignored. JQM looks for the data-role="page" part and inserts it into the same dom as index.html. So basically you are doing it the correct way when you add your js in the index.html page.
If you would like to compartmentalize your js code to work for certain pages use this example:
$(document).on('pageinit', '#page1', function(){
// code for #page1
});
$(document).on('pageinit', '#page2', function(){
// code for #page2
});
$(document).on('pageinit', '[data-role=page]', function(){
// this code will execute for every page that is data-role="page"
});
So go ahead and put all your code in one file. Split your code into appropriate pages like above and include that in your index.html file.
Also if you are using JQM version 1.0.1 with jQuery version 1.6.4(recommended with 1.0.1) use .delegate() instead of .on(). i.e.
$(document).delegate('#page1', 'pageinit', function(){ // notice that pageinit and #page1 are switched around for delegate
// code for #page1
}); // interesting to note that if you use delegate in jQuery 1.7.x it actually just calls the .on() method.
Note If you were making a web application instead of a phonegap app you would be smart to put your javascript in that one file and include that in every page. This way if someone is following a link or bookmarked your page they will still get the correct javascript file they need.
Anyways I hope that helps you out. Good luck!
If you are doing a window.location.href then it will load the new HTML(In you case it is login.html) If you are using this approach then you have to reload all you scripts again and hence add these scripts in all your .html pages.
<script src="cordova-1.6.0.js" type="text/javascript"></script>
<script type="text/javascript" src="jquery/jquery-1.7.1.min.js"></script>
<link rel="stylesheet" href="jquerymobile/jquery.mobile-1.1.0.min.css" />
<script type="text/javascript" src="jquerymobile/jquery.mobile-1.1.0.min.js"></script>
However if you use the approach recommended by #deadlock then you will just need to load the script once. The later approach is the best one.
Please post your code, specifically how the pages link to each other, and the global config settings you set for app, if any. Like much with jQM, there are multiple practices and strategies supported for page arch.
You can also learn by using desktop browser tools and view the "Resources" to see what and when your resources are being loaded.
Related
I am trying to hide/show elements in a view using following code:
$('buttonClass/IDhere').click(function (){
$('theDivYouWantToShowClass/IDhere').toggle();
});
However, I am keep getting
Microsoft JScript runtime error: '$' is undefined
What might be the issue and how do I fix it?
This thread is pretty old, but I think an answer in the thread would be nice. I agree with the previous two answers - it's likely because jQuery wasn't loaded. You can load it this way (usually toward the top of the file):
<script src="~/Scripts/jquery-1.9.1.js" type="text/javascript"></script>
<script src="~/Scripts/jquery-1.9.1.min.js" type="text/javascript"></script>
(or whatever the current version of jQuery is).
Hope it helps.
It sounds like jQuery hasn't been loaded yet.
did you make sure download the jquery javascript file and link in to your html/aspx page before attempting to use jquery scripting?
you need to:
download the jquery code/file from:
http://jquery.com/
copy the file (jquery-1.8.3.min.js) you just downloaded somewhere into your web project directory/folder
then insert the link to this file into html/aspx page:
now try to run webpage
references:
www.youtube.com/watch?v=Bf9Gs-09uzQ
www.ajaxtutorials.com/javascript/introduction-to-jquery-learn-jquery-from-scratch-in-asp-net-4-0/
$ is defined by default when you load jquery. I would try and use jquery() to see if somehow $ is being unloaded etc. You can also load up firebug and hit the page. It should show up as a global variable/function. NOTE: You can also setup jquery to not setup the short hand "$".
since it looks like your trying to target classes and ID's - try this
$('.buttonClass #IDhere').click(function (){
$('.theDivYouWantToShowClass #IDhere').toggle();
});
This is a definite case of jQuery module not being loaded. In my case, common.js had a jQuery related script
$( document ).ready(function() {
var divSessionWarning = $("#idivWarn");
divSesWarning.load(divSesWarning.data("src"));
});
This was called in header.jsp. Swapping the sequence of loading the jQuery followed by the common.js resolved the issue.
<script language="javascript" type="text/javascript" src="/JAVASCRIPT/jquery/jquery-1.10.2.min.js"></script>
<script type="text/javascript" src="/JAVASCRIPT/mod/common.js"></script>
Hope this helps.
If jQuery is called then make sure jQuery is loaded before the stylesheet as its likely that calls it
I'm working on a jQueryMobile application with some form fields that need auto complete functionality. I'm working with jQueryUi Autocomplete plugin but can't get it to work properly. It works fine if my form is the initial page loaded in the browser but doesn't work if the form is loaded later via the jQueryMobile ajax loading mechanism.
The versions I'm working with are:
jQueryMobile: 1.0a4.1
jQueryUi: 1.8.9
jQuery: 1.4.4
My auto complete function looks like this:
$(function () {
$('#search').autocomplete({
source: '/Autocomplete/SearchAutoComplete',
minLength: 3,
select: function (event, ui) { }
});
});
My thinking is that this needs to be wired up to the current active page but I'm not sure how to do this. Can someone let me know how to accomplish this?
Also, I'm not tied to the jQueryUi autocomplete solution. If there is a better way to do this, please let me know.
Thanks,
Greg
Now that JQuery Mobile has matured quite a bit and is getting close to it's 1.0 release, I decided to take another stab at getting this to work properly. I've had good success so I'd like to share the solution here.
Here are the versions I am now currently working with (as of 01-Feb-2012):
jQuery Mobile 1.0.1
jQuery 1.6.4
jQuery UI 1.8.12
The order in which the scripts are referenced is critical. It needs to be jQuery, jQuery UI, jQuery Mobile, then your custom script file last. My page head looks like this:
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, minimum-scale=1, maximum-scale=1" />
<title>My jQM App</title>
<link rel="stylesheet" href="http://ajax.aspnetcdn.com/ajax/jquery.mobile/1.0.1/jquery.mobile-1.0.1.min.css" />
<script src="http://ajax.aspnetcdn.com/ajax/jquery/jquery-1.6.4.min.js" type="text/javascript"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.12/jquery-ui.min.js" type="text/javascript"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.mobile/1.0.1/jquery.mobile-1.0.1.min.js" type="text/javascript"></script>
<script src="/Scripts/script.js" type="text/javascript"></script>
<link rel="stylesheet" href="/Content/style.css" />
</head>
All of the autocomplete code should be in a separate .js file and should be the last file linked to. In this sample, mine is script.js.
Next, make sure that all of your page div's (data-role='page') also have an id set. For example, on my search page I have
<div data-role="page" id="searchPage">
Now that all the page div have id's you can bind to the jQuery Mobile pagecreate event for that div. In a standard jQuery page you would have something like this for the autocomplete:
$('#search').autocomplete({
source: '/Autocomplete/SearchAutoComplete',
minLength: 3,
select: function (event, ui) { }
});
To do the equivalent but have it hooked up to the specific page div looks like this:
$('#searchPage').live('pageinit', function (event) {
$('#search').autocomplete({
source: '/Autocomplete/SearchAutoComplete',
minLength: 3,
select: function (event, ui) { }
});
});
This has been working well for me so far. I've been able to strip out most of data-ajax="false" attributes I had in place as a workaround. This, in turn, has resulted in better application performance. I have by no means done an exhaustive compatibility test between jQuery UI and jQuery Mobile so your mileage may vary. Please leave a comment here if you run into any problems with this method. Good luck.
For future reference I recently released an autoComplete plugin written specifically for use with jQuery Mobile:
http://www.andymatthews.net/code/autocomplete/
$('div').live('pagebeforecreate',function(event,ui){
// do something in jquery
});
I have done a bunch of searching. The jQuery UI autocomplete sort of works for modifying a typing text box. The jQuery Mobile filter search box simulates an autocompete but I really didn't find it very useful for use with an actual data collection form.
This article got me started using the jQuery UI autocomplete but I kept runing into formatting problems. I ended up writing my own ajax only (at the moment) autocomplete and thought I would share it. The source is there for you to tweak as you see fit. Maybe someone can take it and improve it or just use it as it stands.
http://schworak.com/blog/e75/jquery-mobile---autocomplete-text-input/
I'm not sure if it is applicable in your case but a workaround would be to add the data-ajax="false" attribute to prevent the page to be loaded by ajax.
http://jquerymobile.com/demos/1.0a4.1/#docs/pages/link-formats.html
jQuery Mobile now has autocomplete, where the results are populated in a listview. Their demo page has great examples on how to implement it, for both local and remote data.
I recently released an autoComplete component with zero-dependency. (no-jQuery)
This completely support most mobile browser like Android, iOS.
https://github.com/skplanet/sweetsearch/
I want to open the the .html file from my .js file. So I Used the $.mobile.changePage("file.html"). In the file.html have file.js. But The file.js does not call when the file.html in invoked.
THanks in advance.
first.js
$.mobile.changePage ("file.html");
file.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>jQuery Mobile Framework - Dialog Example</title>
<link rel="stylesheet" href="jquery.mobile-1.0a2.min.css" />
<script src="jquery-1.4.4.min.js"></script>
<script src="jquery.mobile-1.0a2.min.js"></script>
<script src="../Scripts/file.js"/> // Could not imported
<script src="../Scripts/helperArrays.js"/> // Could not imported
<script src="../Scripts/globalVariables.js"/> // Could not imported
</head>
<body>
<div data-role="page">
<div data-role="header" data-nobackbtn="true">
<h1>Vaults</h1>
</div>
<!-- <div data-role="content" data-theme="c" id="contentVault">
Sample Vault
My Vault
</div> -->
<div data-role="content" id="content">
<ul id="listview" data-role="listview" data-inset="true" data-theme="e" data-dividertheme="b">
<li id="listdiv" data-role="list-divider">List of Items</li>
</ul>
</div><!-- /content -->
</div>
</body>
</html>
Please help me..
When jQM loads another page through AJAX it only pulls in anything within your div[data-role="page"] and nothing else, like the head
So you can if you wanted to, include any JS/CSS within this div, the problem is that if this page is accessed multiple times any CSS will accumulate, but the problem is much worse for JS.
You are basically getting every page appended to the DOM, so the JS runs on the entire DOM (every page you loaded) if you use a global selector like $('div.someClass'), even using an ID isn't a perfect solution because if you can link to the same page twice.
For Smaller Sites
I've solved this by moving all the CSS into one file and for JS code that I want to run each time the page is loaded, I bind to the pageinit and pageshow jQM events:
<script type="text/javascript">
$("div:jqmData(role='page'):last").bind('pageinit', function(){
//your code here - $.mobile.activePage not declared
});
$("div:jqmData(role='page'):last").bind('pageshow', function(){
//your code here - $.mobile.activePage works now
});
</script>
The pageinit event runs when the page is loaded, only ever once (after it's loaded it stays in memory if you navigate back to it, even via a back button this isn't fired again), pageshow on the other hand fires everytime the page is shown, even when you navigate back to it via the back button on the browser for example.
The pageinit runs when the DOM is there, the pageshow event is only if you have some code that depends on the DOM being rendered and you need a quick reference to the active page through $.mobile.activePage or some data changed and you need to refresh this back everytime it's shown. For most purposes I only use the pageinit as a document.ready for jQM and bind my events there. Use bind for static elements, and on instead of live for dynamic elements, because live events listen at the document root, you want to listen at the page div.
For Larger Sites
For larger sites there are advantages to binding a live event to any pages and handling types of pages, this way js code isn't loaded more than once.
If you have external js files with say helper functions that you only need once put that in the head of all your pages (if there aren't too many), if you had a very big site you could probably do better by tracking which JS files have been loaded server side.
All this can be avoided by just not using AJAX to load new pages, so think about whether that transition/loading effect is worthwhile
*Here's how I handle large jQM sites: *
bind a live event to all pages/dialogs pageinit and pageshow events:
$(document).on('pageinit pageshow', 'div:jqmData(role="page"), div:jqmData(role="dialog")', function(event){
I reference each page with a name: <div data-role="page" data-mypage="employeelist">
In this live event you can basically have a switch statement for each page "name", and then check event.type for pageinit/pageshow or both and put your code there, then every time a page is created/shown this event will be fired, it knows what page triggered it and then calls the corresponding code
I eventually had too much code, so I built a handler object where each page's js is included in a separate js file and can register handlers with the live event
The drawback is that all your js for your entire site is loaded on the first page the user reaches, but minified even a large site is smaller than jQuery or jQM so this shouldn't be a concern. The advantage is you are no longer loading all your JS for each page through AJAX each time the user navigates to a new page.
*note: now RequireJS can make this even more manageable
Jquery mobile gets pages via AJAX and adds their content to the current page.
I saw some notices about changing the page title to the incoming one, so they are (planning?) accessing the head, but at the moment jquery mobile doesn't seem to load external js when loadin a page.
More importantly - if you use $(document).ready() it will not be triggered, because it was AJAX
On a particular page, I am using jquery ui tab to tabify my web page. My JavaScripts are placed in external files and loaded at the end of my HTML. On document ready event, the very first thing I do is to call the tabify plugin.
The problem is that the browser has already painted the page at this point, then repaints it once it tabifies the page. So, I get a split-second flickering of the screen. How do I prevent this flickering? I do not want to load JavaScripts in as I am trying to optimize my site per Google PageSpeed/Yahoo YSlow recommendations.
<html>
<body>
....
<script src="tabify.js"></script>
</body>
</html>
tabify.js
$('document').ready(function(){
$("#tabs").tabs();
});
hide the content with css display:none; then use $("#tabs").show().tabs();
Can anyone know the link for loading jquery-ui-1.7.2.custom.min from j query site like
<script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.3.2.js"></script>.
what are all the .js files needed for jquery tab.
You may use google api to load jquery:
<script src="http://www.google.com/jsapi"></script>
<script>
google.load("jquery", "1.3.2");
google.load("jqueryui", "1.7.2");
</script>
You need to make sure that you include the tabs script with your custom build. To do this go to http://jqueryui.com/download and tick the 'tabs' checkbox.
This will out put a zip file containing images, css and js files.
Next, attach the custom jQuery UI file, aswell as the jQuery file and the relevant CSS files.
Then visit http://jqueryui.com/demos/tabs/ and check out the source for that demo (click 'view source'). It'll give you the mark up needed to create the tabs.