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• How to enable a Web portal-based rich enterprise platform on different domains and hosts using JS without customization/ server configuration

  - by S.Jalali

  Our company Coscend has built a Web portal-based communications and cloud collaboration platform by using JavaScript (JS), which is embedded in HTML5 and formatted with CSS3. Other technologies used in the core code include Flash, Flex, PostgreSQL and MySQL. Our team would like to host this platform on five different Windows and Linux environments that run different types of Web servers such as IIS and Apache. Technical challenge: Each of these Windows and Linux servers have a different host name and domain name (and IP address), but we would like to keep our enterprise platform independent of host server configuration. Possible approach to solution: We think an API (interface module with a GUI) is needed to accomplish this level of modularity and flexibility while deploying at our enterprise customers. Seeking your insights: In this context, our team would appreciate your guidance on: Is there an algorithmic method to implement this Web portal-based platform in these Windows and Linux environments while separating it from server configuration, i.e., customizing the host name, domain name and IP address for each individual instance? For example, would it be suitable to create some JS variables / objects for host name and domain name and call them in the different implementations? If a reference to the host/domain names occurs on hundreds of portal modules, these variables or JS objects would replace that. If so, what is the best way to make these object modules written in JS portable and re-usable across different environments and instances for enterprise customers? Here is an example of the implemented code for the said platform. The following Web site (www.CoscendCommunications.com) was built using this enterprise collaboration platform and has the base code examples of the platform. This Web site is domain-specific. We like to make the underlying platform such that it is domain and host-independent. This will allow the underlying platform to be deployed in multiple instances of our enterprise customers.

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• JavaScript Error line 1 <ANYJAVASCRIPFILE.JS> SyntaxError: Parse error IN Iphone mobile safari

  - by Pratt

  Hi, I keep getting this error when I run my web app (asp.net mvc) in the mobile safari (ITouch) JavaScript Error line 1 SyntaxError: Parse error JavaScript Error line 1 SyntaxError: Parse error I have no problem running this in any other browser (including safari). I suspect this is something to do with mobile safari handling javascript files. I am using MicrosoftMvcAjax.js and Jquery. The above error is totally useless to me and I couldn't figure out where to debug or start. Any help would be appreciated. Thanks

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• Visual Studio 2008 - syntax-highlighting and intellisense not working for aspx, js, css

  - by michalstanko

  Hello all, I'm having problems with Visual Studio 2008, namely, syntax-highlighting and intellisense for *.aspx, *.js and *.css files (and maybe more) not working. Also, when I go to Tools - Options... - Text editor - HTML - Format, I see this error message: "An error occurred loading this property page" Everything was working fine before, until recently. The only change that might have possibly triggered this (but I am not 100% sure whether it stopped working at that exact time or some other time) was a change of the display language in my Windows 7 installation. I have already tried running: devenv /Setup devenv /ResetSkipPkgs devenv /ResetSettings ...none of which helped. Also, setting my default system font to Tahoma, which was a suggestion I found somewhere else, did not work for me (it was Tahoma before, since I use the Windows Classic theme). Thank you very much for your suggestions.

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• Websocket TLS Node Server and wss://

  - by CNelson

  I'm looking to start using javascript on the server, most likely with node.js, as well as use websockets to communicate with clients. However, there doesn't seem to be a lot of information about encrypted websocket communication using TLS and the wss:// handler. In fact the only server that I've seen explicitly support wss:// is Kaazing. This TODO is the only reference I've been able to find in the various node implementations. Am I missing something or are the websocket js servers not ready for encrypted communication yet? Another option could be using something like lighttpd or apache to proxy to a node listener, has anyone had success there?

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• js - using replace method to replace html element

  - by Rueta

  hi everyone! i have a question. I have a work this morning but i don't know how to do it. My work here (html): <div class="demo"> <p>this is demo text</p> </div> here is my JS : var tempdata = $(".demo").text(); var replacedata = tempdata.replace("text","<span>1234</span>"); Look everything ok. but result is : this is demo <span>1234</span>. this isn't my result i want. How to make in this string become a HTMLelement by using replace method?

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• dynamically getting base url inside js file

  - by uzay95

  I eant to run function inside web service (.asmx file) $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: '/Admin/WebSrvcs/Management.asmx/f_SearchLabel', data: "{_sQuery:'" + obj.value + "'}", dataType: "json", But I don't know where will be my root url(http://localhost:4399/VirDir or something else it may be) address inside js file. And i need to reach root folder of application to find asmx file. $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: 'http://localhost:4399/virDir/Admin/WebSrvcs/Management.asmx/f_SearchLabel', data: "{_sQuery:'" + obj.value + "'}", dataType: "json", I am working on Visual Studio 2008 and building web site with C#. any help would be greatly appreciated

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• Pass client side js variable into server side jscript

  - by George

  How can I get the query string from the browser url using client side js and set it as a variable to use in some server side scripting? Client side script: var project = getQueryString("P"); function getQueryString(param) { var queryString = window.location.search.substring(1); splitQueryString = queryString.split("&"); for (i=0; i<splitQueryString.length; i++) { query = splitQueryString[i].split("="); if (query[i] == param) { return query[1]; } } } Server side script: response.write ('<td><a href="/index.asp?P=' + project + ">' + obj.BODY[i].NAME + '</a></td>');

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• [ext js] Renderer for ColumnTree?

  - by Chris Cowdery-Corvan

  Hello! I'm trying to add a custom renderer to a ColumnTree in Ext JS. Since it appears(?) that this isn't supported, does anyone know of any workaround to use a renderer? Here's a snippet of code - let's just say (hypothetically) that I have a renderer I'd like to use for the documentsVersion tab below - does anyone have any ideas? return new Ext.tree.ColumnTree({ autoHeight: false, rootVisible: showRoot, autoScroll: false, id: (!treeId)? window.mainTreeId: treeId, loader: (!loader)?window.docTreeLoader:loader, columns: [{ header:"${documentsTitle}", width: windowWidth * 0.40 }, { header:"${documentsVersion}", width: windowWidth * 0.10, dataIndex:'version' }, Thanks!

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• Jdeveloper vs java/j2ee/js+extjs ?

  - by ssgam

  Hi All, i am new to the web development environment, having came from a unix/c environment. i've been recently asked to create a web app, which i thought would require postgresql, java/j2ee, and javascript for the client interface. as i had wanted a nicer gui, i've been reading up on extjs, which looks really nice to me. a colleague mentioned that the time needed time needed to learn all these various pieces is time consuming, and Jdeveloper seems to provide most of what we'd need (i was shown a demo, which appears to be able to generate some nice web interfaces). what are the pros and cons with the different approaches ? some i can think of: - jdeveloper is an integrated ide, which creates UI easily, tightly integrated with database. (pro) - jdeveloper will be heavier? (con) - wizard generated code may be harder to refactor ? (con) - java/j2ee/js+extjs needs to develop things from ground up (con) thanks in advance for sharing your experiences and thoughts ... sam

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• checkbox value after refresh

  - by moustafa

  hi guys, How to retain the checkbox value (in js) after refresh? There is a checkbox in this form. When the page is refreshed, the checkbox data disappears. Is there a way to refresh the page, while keeping the checkbox data? I have a window (#1) with a form and checkbox. #1 has a link to pop up another window (#2) with another form. When the form on #2 is completed, #1 is refreshed. My project is a combination of PHP and JS..please help Thank you.

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• Change JS alert to DOM error message div

  - by Jason

  I need to convert my error messaging to a positioned div (hidden initially) instead of the standard js alert. I realize I need to push the alert message to the DOM, but I'm new to javascript. Any help would be appreciated. Additionally, I need to do it without a confirm (so error message removes on field focus) if(el != null) { switch(el.name) { case "firstName": //First Name Field Validation, Return false if field is empty if( f.firstName.value == "" ) { alert( bnadd_msg_002 ); if ((typeof TeaLeaf != "undefined") && (typeof TeaLeaf.Client != "undefined") && (typeof TeaLeaf.Client.tlAddEvent != "undefined") ) { var nVO = { ErrorMessage : bnadd_msg_002} var subtype="CustomErrorMsg"; TeaLeaf.Event.tlAddCustomEvent(subtype, nVO); } return false; } break;

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• Can I refresh a Yii CGridView from js?

  - by Brian Dunn

  When a "Create" modal dialog is submitted via XHR Then the rows in a Yii CGridView should be refreshed. I've tried to achieve this by rendering the new gridview in the XHR "create" action and then inserting it into the page via $("#list").html(response), but rendering a CGridView causes jQuery <script> include tags to be registered for inclusion, and so when I introduce those tags into the page they reload jQuery, which wipes out my live event handlers, so a bunch of stuff breaks. Which has me thinking, "the GridView knows how to refresh itself. heck, it does all the time on sort or page." So I can click a sort button in the GridView from js, but thats less than Ideal. I'd prefer to say $("#list").gridview('reload') or $.fn.gridview.reload("#list") or some such sense. Or do the way cool thing that is soo much simpler that you thought of just now.

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• using Control.tabs for prototype.js in Rails

  - by Elliot

  Hey everyone, I've been trying to use http://livepipe.net/control/tabs to get some javascript tabs up and running on my rails up. I'm really just trying to figure out how to install this... and I don't see how I'm running into any issues at all. Here are the steps I've taken: put tabs.js in my scripts folder made sure the layout is including all javascript files then I copied in the code for example 1, as well as the CSS from the page's style sheet. I don't get an error, but it just doesn't work. Both tabs are displayed... Any ideas?

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• What's a good bit of JS or JQuery for horizontally scrolling news ticker

  - by Graphain

  Hi, I am looking for a little bit of JQuery or JS that allows me to produce a horizontally scrolling "news ticker" list. The produced HTML needs to be standards compliant as well. I have tried liScroll but this has a habit of breaking (some content ends up on a second line at the start of the scroll), especially with longer lists. I have also tried this News Ticker but when a DOCTYPE is included the scrolling will jolt rather than cycle smoothly at the end of each cycle. Any suggestions are appreciated. Edit So thanks to Matt Hinze's suggestion I realised I could do what I wanted to do with JQuery animate (I require continuous scrolling not discrete scrolling like the example). However, I quickly ran into similar problems to those I was having with liScroll and after all that realised a CSS issue (as always) was responsible. Solution: liScroll - change the default 'var stripWidth = 0' to something like 100, to give a little space and avoid new line wrapping.

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• How could I embed a html/css/js view in a webstart application

  - by phmr

  I would like to use a html/css/js view in my webstart project without requesting all permissions. I figured out that I could use the java HTTPServer to process the requests but I need a way to avoid using real sockets, so that the HTTPServer instantiation doesn't ask for some permission. Do you know any projects that achieve that ? and if not, what should I do to get an HTTPServer completely working locally (without hitting boundaries...) ? edit: maybe an HTTPServer is too much, I maybe only need a HttpHandler..

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• Form data sent to Node via Post is undefined

  - by user185812

  I know this has been asked countless times on here, however I tried all the solutions and am still having the issue. Most people say to set the content-type (which I did) and to name the inputs that I wish to Post to node. I have done both of these things, yet still get "undefined" when trying to send data from an HTML form to node. JADE Templating HTML Code (Sorry I can't seem to get the indenting to show up here, however I think I should leave the code intact when posting here instead of converting it to normal HTML so that if the error is in here, you are still able to help) Form(action="/registration", method="post", enctype="application/x-www-form-urlencoded") div(class="control-group-Username") label(class="control-group", for="username") Username: div.controls input#Username(id="Username", type="text", placeholder="Username Here", maxlength="23", name="username") //Other divs and stuff here button.btn#submit_button(type="submit") Submit app.js code /** * Module dependencies. */ express = require('express') , routes = require('./routes') , user = require('./routes/user') , http = require('http') , path = require('path'); app = express(); // all environments app.set('port', process.env.PORT || 3000); app.set('views', __dirname + '/views'); app.set('view engine','jade'); app.use(express.favicon()); app.use(express.logger('dev')); app.use(express.bodyParser()); app.use(express.methodOverride()); app.use(express.cookieParser('your secret here')); app.use(express.session()); app.use(app.router); app.use(require('less-middleware')({ src: __dirname + '/public' })); app.use(express.static(path.join(__dirname, 'public'))); // development only if ('development' == app.get('env')) { app.use(express.errorHandler()); } app.use(express.static(__dirname + '/public')); app.get('/', routes.index); app.get('/users', user.list); app.get('/register', routes.register); http.createServer(app).listen(app.get('port'), function(){ console.log('Express server listening on port ' + app.get('port')); }); require('./Register.js'); register.js code app.post('/registration', function(req, res) { var Email=req.body.username console.log(username); });

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• Generating unobtrusive JS

  - by nico

  I have read quite a bit about unobtrusive JS and how to generate it and all that jazz... My problem is this: I have a website that heavily relies on mod_rewrite, so essentially all the pages requests are sent to index.php that generates the main structure of the page and then includes the appropriate page. Now, there are different sections in the site and each section uses different Javascript functions (e.g. for different AJAX requests). Now, if I just were to attach a function to the onload of the page obviously the thing would not work, as I do not have to initialise the same things for each page... so what is the best way to handle this situation? I hope the situation is clear, I'll be happy to clarify if needed

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• Replacing links detected in a HTML with other links using JS

  - by Jim

  Hi people. I'm having a bit of trouble figuring out how to do this one. Here's the scenario. My e-commerce site has a blog with a lot of content, promoting the products I sell, reviewing them etc. 99% of the posts on the blog link back to the products they are talking about. I'm going to be changing the URL where my ecommerce system is located. Therefore my blog is going to end up sending people to a lot of 404 pages. The idea I've had is to be able inclue a JS file which will on load, scan the document for existing links then, if found, swap them out with ones which are now correct. I hope this make sense. Cheers, Jim

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• Single page Web App in Java framework or examples?

  - by Adam Gent

  Has anyone seen an example or done the following in Java: http://duganchen.ca/single-page-web-app-architecture-done-right/ That is a design a single page web app that will work with Google SEO with out massive violation of DRY using Java technologies? It doesn't seem terrible hard to do this on my own but I was curious (and lazy) to see if someone had already done it with either Spring or JAX-RS.

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• Save jQuery callback functions in a separate file

  - by Danny Herran

  Probably I missed something, but lets say I have this: $('a.delete').click(function(){ resp=window.confirm("Are you sure you want to delete this?"); if(resp) return true; else return false; } Now, I want to save that callback function into a separate js file, because I will use it in several pages. My logic told me to do this: $('a.del').click(delete_element()); Having my js file like this: function delete_element(){ resp=window.confirm("Are you sure you want to delete this?"); if(resp) return true; else return false; } This doesn't work. Everytime my page loads, it displays the confirm window, even if I haven't clicked the link. It is clear that my logic failed this time. What am I missing?

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• Explain a block of crazy JS code inside Sizzle(the CSS selector engine)

  - by Andy Li

  So, here is the function for pre-filtering "CHILD": function(match){ if ( match[1] === "nth" ) { // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6' var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec( match[2] === "even" && "2n" || match[2] === "odd" && "2n+1" || !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]); // calculate the numbers (first)n+(last) including if they are negative match[2] = (test[1] + (test[2] || 1)) - 0; match[3] = test[3] - 0; } // TODO: Move to normal caching system match[0] = done++; return match; } The code is extracted from line 442-458 of sizzle.js. So, why is the line var test = ..., have the exec inputing a boolean? Or is that really a string? Can someone explain it by splitting it into a few more lines of code?

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• change `dest` option on the fly

  - by Rikard

  I have some grunt tasks to compile files and would like to "recicle" them inside different tasks. I am trying to modify the destination directory without success... My idea is something like: grunt.registerTask('bower', ['compile:index', 'compile:core'], function(){ this.options({dest: 'dist/*.js'}); }); The compile:index task runs good by itself (i.e. when called alone) and has dest: 'index.js, other tasks have other filenames. I would like to change these inside the bowertask, adding a new directory but keeping the filename defined in the original task. Is this possible?

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• format.js generate 406 Not Acceptable error

  - by Denis

  Hello, following code generate a 406 Not Acceptable error. What can be wrong with my code? def remote_create @photo = Photo.new(params[:photo]) respond_to do |format| if @photo.save # add @photo's thumbnail to last import tag format.js { render :update do |page| page.insert_html :bottom, 'polaroids' , :partial => 'polaroid', :locals => {:photo => @photo} end } else format.html end end end Started POST "/photos/remote_create" for 127.0.0.1 at 2010-03-14 14:02:08 Processing by PhotosController#remote_create as HTML Parameters: {"photo"=>{"photo"=>#<File:/var/folders/BT/BTpdsWBkF6myaI-sl3+1NU+++TI/-Tmp-/RackMultipart20100314-285-1y9eq1x-0>, "name"=>"4204497503_a0c43c561d.jpg"}} SQL (0.6ms) INSERT INTO "photos" ("created_at", "filename", "height", "name", "photo_content_type", "photo_file_name", "photo_file_size", "photo_updated_at", "size", "updated_at", "width") VALUES ('2010-03-14 13:02:08.449499', NULL, NULL, '4204497503_a0c43c561d.jpg', 'application/octet-stream', '4204497503_a0c43c561d.jpg', 136710, '2010-03-14 13:02:08.446370', NULL, '2010-03-14 13:02:08.449499', NULL) [paperclip] Saving attachments. [paperclip] saving /Users/denisjacquemin/Documents/code/projects/photos/public/system/photos/224/original/4204497503_a0c43c561d.jpg Completed in 101ms with 406

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• Uncaught TypeError: Cannot read property 'length' of undefined

  - by AnApprentice

  I'm working to built a contact list that is grouped by the first letter of the contact's last name. After a succesfull ajax request, the contact is pushed to addContact: Ajax success: ko.utils.arrayForEach(dataJS.contactList, function(c) { contactsModel.addContact(c); }); contactsModel.addContact: //add a contact in the right spot under the right letter contactsModel.addContact = function(newContact) { //grab first character var firstLetter = (newContact.lname || "").charAt(0).toUpperCase(); //if it is a number use # if (!isNaN(firstLetter)) { firstLetter = "#"; } //do we already have entries for this letter if (!this.letterIndex[firstLetter]) { //new object to track this letter's contacts var letterContacts = { letter: firstLetter, contacts: ko.observableArray([]) }; this.letterIndex[firstLetter] = letterContacts; //easy access to it //put the numbers at the end if (firstLetter === "#") { this.contactsByLetter.push(letterContacts); } else { //add the letter in the right spot for (var i = 0, lettersLength = this.contactsByLetter().length; i < lettersLength; i++) { var letter = this.contactsByLetter()[i].letter; if (letter === "#" || firstLetter < letter) { break; } } this.contactsByLetter.splice(i, 0, letterContacts); } } var contacts = this.letterIndex[firstLetter].contacts; //now we have a letter to add our contact to, but need to add it in the right spot var newContactName = newContact.lname + " " + newContact.fname; for (var j = 0, contactsLength = contacts().length; j < contactsLength; j++) { var contactName = contacts()[j].lName + " " + contacts()[j].fName; if (newContactName < contactName) { break; } } //add the contact at the right index contacts.splice(j, 0, newContact); }.bind(contactsModel); The contacts json object from the server looks like this: { "total_pages": 10, "page": page, "contactList": [{ "photo": "http://homepage.mac.com/millhouse/Family%20Tree/images/PersonListIcon.png", "lname": "Bond", "id": 241, "fname": "James", "email": "[email protected]"}, While this works in jsfiddle, when I try it locally, I get the following error during the first push to addContact: Uncaught TypeError: Cannot read property 'length' of undefined jQuery.jQuery.extend._Deferred.deferred.resolveWithjquery-1.5.1.js:869 donejquery-1.5.1.js:6591 jQuery.ajaxTransport.send.callbackjquery-1.5.1.js:7382 Ideas? Thanks

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• JS dynamic img change and SEO

  - by Gusepo

  Hi all, I've built a web site using jquery to make nice transitions between content. The code works this way: there are 2 imgs (body and footer) when I click on a link (instead of going to another page) I fade out the 2 imgs and change the src attribute of the 2. When the new imgs are loaded I fade them back in. I'm using SWFaddress to allow user go directly to internal content. Now I'd like to make my content indexed by google and other Search engines, all the text content is inside the imgs, So I've got the text in ALT attribute. My question is: if a dinamically change the imgs ALT attribute using JS, will spiders be able to read it properly? consider that I'm using SWFaddress to create a sitemap.. Thanks

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