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  • How to reference an anonymous JavaScript function?

    - by ProfK
    I'm trying to call a Page Method using a jQuery 'attached' event function, in which I like to use the closure to keep the event target local, as below, but page method calls declare several 'error' functions, and I would like to use one function for all of them. If, in the below code, I was handling an error and not success, how could I use my single, anonymous handler for all 3 error functions? $(":button").click(function () { var button = this; PageMethods.DoIt( function (a, b, c) { alert(button); }); }); This example passes an anonymous function for the success callback. There is only one of these. If I was passing an error callback, how could I use 'function (e, c, t)' for all 3 error callbacks?

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  • Cant get description rss tag data with javascript

    - by AdamB
    I'm currently making a widget to take and display items from a feed. I have this working for the most part, but for some reason the data within the tag within the item comes back as empty, but I get the data in the and tags no problem. feed is and xmlhttp.responseXML object. var items = feed.getElementsByTagName("item"); for (var i=0; i<10; i++){ container = document.getElementById('list'); new_element = document.createElement('li'); title = items[i].getElementsByTagName("title")[0].firstChild.nodeValue; link = items[i].getElementsByTagName("link")[0].firstChild.nodeValue; alert(items[i].getElementsByTagName("description")[0].firstChild.nodeValue); new_element.innerHTML = "<a href=\""+link+"\">"+title+"</a> "; container.insertBefore(new_element, container.firstChild); } I have no idea why it wouldn't be working for the tag and would be for the other tags. Here is an example of the rss feed its trying to parse: <rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"> <channel> <title>A title</title> <link>http://linksomehwere</link> <description>The title of the feed</description> <language>en-us</language> <item> <pubDate>Fri, 10 Jul 2009 11:34:49 -0500</pubDate> <title>Awesome Title</title> <link>http://link/to/thing</link> <guid>http://link/to/thing</guid> <description> <![CDATA[ <p>some html crap</p> blah blah balh ]]> </description> </item> </channel> </rss>

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  • JavaScript lazy regex for matching HTML tags

    - by Grnbeagle
    Hi, I'm having a problem writing a regular expression for matching HTML tags. I found a similar entry here, but this didn't quite work in my case. Here's my test string: <div id="div0" class="myclass">here's some text that may include whitespace</div><div id="div1" class="myclass"> and some more here </div> And here's my regex based on the aforementioned entry: <div[^>]*class="myclass">[^~]*?<\/div> Note that I need to match the first instance of <div /> with class of "myclass." The content may have carriage returns. These <div> tags won't be nested. Here's a rubular page for testing: http://rubular.com/r/vlfcikKMXk

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  • Is linking a <div> using javascript acceptable?

    - by jhchawk
    I want to link an entire <div>, but CSS2 does not support adding an href to a div (or span for that matter). My solution is to use the onClick property to add a link. Is this acceptable for modern browsers? Example code: <div class="frommage_box" id="about_frommage" onclick="location.href='#';"> <div class="frommage_textbox" id="ft_1"><p>who is Hawk Design?</p></div> My test page is at http://www.designbyhawk.com/pixel. Updated daily. Thanks for the help.

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  • Javascript - Canvas image never appears on first function run

    - by Matt
    I'm getting a bit of a weird issue, the image never shows the first time you run the game in your browser, after that you see it every time. If you close your browser and re open it and run the game again, the same issue occurs - you don't see the image the first time you run it. Here's the issue in action, just hit a wall and there's no image the first time on the end game screen. Any help would be appreciated. Regards, Matt function showGameOver() { ctx.clearRect(0, 0, canvas.width, canvas.height); ctx.fillStyle = "black"; ctx.font = "16px sans-serif"; ctx.fillText("Game Over!", ((canvas.width / 2) - (ctx.measureText("Game Over!").width / 2)), 50); ctx.font = "12px sans-serif"; ctx.fillText("Your Score Was: " + score, ((canvas.width / 2) - (ctx.measureText("Your Score Was: " + score).width / 2)), 70); myimage = new Image(); myimage.src = "xcLDp.gif"; var size = [119, 26], //set up size coord = [443, 200]; ctx.font = "12px sans-serif"; ctx.fillText("Restart", ((canvas.width / 2) - (ctx.measureText("Restart").width / 2)), 197); ctx.drawImage( //draw it on canvas myimage, coord[0], coord[1], size[0], size[1] ); $("canvas").click(function(e) { //when click.. if ( testIfOver(this, e, size, coord) ) { startGame(); //reload } }); $("canvas").mousemove(function(e) { //when mouse moving if ( testIfOver(this, e, size, coord) ) { $(this).css("cursor", "pointer"); //change the cursor } else { $(this).css("cursor", "default"); //change it back } }); function testIfOver(ele,ev,size,coord){ if ( ev.pageX > coord[0] + ele.offsetLeft && ev.pageX < coord[0] + size[0] + ele.offsetLeft && ev.pageY > coord[1] + ele.offsetTop && ev.pageY < coord[1] + size[1] + ele.offsetTop ) { return true; } return false; } }

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  • Using textbox text in javascript

    - by Jambo
    I am working with Twitter widgets with the following script- <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <input type="button" value="Run Function" onclick="test();" /> <script> function test() { new TWTR.Widget({ version: 3, type: 'profile', rpp: 8, interval: 30000, width: 315, height: 340, theme: { shell: { background: '#333333', color: '#ffffff' }, tweets: { background: '#000000', color: '#ffffff', links: '#4aed05' } }, features: { scrollbar: false, loop: false, live: false, behavior: 'all' } }).render().setUser(document.getElementById('TextBox1').value).start(); } When using the function test(); in the button click it is ocming up with the error - Error: Unable to get value of the property 'value': object is null or undefined So it seems like it is not getting to the value at - (document.getElementById('TextBox1').value) I am not sure why it is null if the text box has a value and then the script is run on the button click?

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  • Javascript pass reference by value

    - by Carlos R. Batista
    Im having this weird reference issue when im trying to get a JSON file through query: var themeData; $.getJSON("json/sample.js", function(data) { themeData = data.theme; console.log(themeData.sample[0].description); }); console.log(themeData.sample[0].description); The first console.log works, the second doesnt. Im guessing because "data" already expired by the time the script gets there and themeData is just a mere pointer to "data". Is there a ways I can make sure themeData gets a duplicate of "data" and not just a pointer to it?

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  • Generate and download a text file in javascript

    - by Mark B
    All my research so far suggests this can't be done, but I'm hoping someone here has some cunning ideas. I have a form on a website which allows users to bulk upload lots of URLs to add to a list on the server. There's quite a lot of server-side processing to do on each URL, so to avoid timeouts and to display progress, I've implemented the upload using jQuery to submit the URLs one at a time using ajax. This is all working nicely. However, part of the processing on each URL is deduplicating it against the complete list. The ajax call returns a status indicating either a successful upload or a rejection due to duplication. As the upload progresses, I tell the user how many URLs have been rejected as duplicates (along with overall progress and ETA). The problem now is how to give the user a complete list of the failed duplicate URLs. I've kept them in an array in my jQuery, and would like the user to be able to click on a link on the form to download a text file containing those URLs. Is this possible just using client-side processing? The server-side processing basically handles a single keyword at a time. I'd rather not have to store the duplicates in a database table with some kind of session key which gets sent with every ajax call, and is then used at the end to generate the text file server-side (and then gets cleaned up some time later). I can see how to do this, but it seems very clunky and a bit 20th century.

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  • regex and javascript, some matches disappear !

    - by dader51
    Here is the code : > var reg = new RegExp(" hel.lo ", 'g'); > > var str = " helalo helblo helclo heldlo "; > > var mat = str.match(reg); > > alert(mat); It alerts "helalo, helclo", but i expect it to be "helalo, helblo, helclo, heldlo" . Only the half of them matches, I guess that's because of the space wich count only once. So I tried to double every space before processing, but in some case it's not enough. I'm looking for an explanation, and a solution. Thx

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  • Get ExternalInterface definitions in Javascript

    - by Jamal Fanaian
    Is there a way to get a list of the exposed functions from a Flash object? For example, you could get a list of all methods in an object by executing: for (var i in object) { if (typeof object[i] == "function") { console.log(i); } } The only issue is that this won't expose any methods registered through the ExternalInterfaces API. I can try and see if the function exists (object['method']) and it tells me it is a function, but I would have to guess every existing method in this manner. NOTE: Obviously, I don't have access to the actionscript.

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  • Javascript function not getting Windows username

    - by Cocoa Dev
    function getWindowsUserName() { var WinNetwork = new ActiveXObject("WScript.Network"); var urlToSite = "http://localhost/index.php?nph-psf=0&HOSTID=AD&ALIAS=" & WinNetwork.username document.getElementById(psyncLink).value = urlToSite; } I am trying to make the frame load the urlToSite <frameset cols="300px, *"> <frame src="topo1.htm" name="topo" id="topo" application="yes" /> <frame src="http://localhost/index.php?nph-psf=0&HOSTID=AD&ALIAS=" name="psync" id="psyncLink" application="yes" /> </frameset>

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  • Twitter Client using JavaScript and Oauth

    - by MP
    Is there any good tutorial or example to build a Twitter client using popup and oauth for login (Ex: http://twitgoo.com/) Also once the user logs in, the new tweets showed without any page refresh and also the ability to post a tweet without page refresh. If there is no good example, please suggest the API or libraries i need or any general suggestion.

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  • SVG Parser in Javascript

    - by jsight
    I believe that at one point, I saw a TinySVG implementation that worked in the browser, using the canvas element as the backend. I found a few sites that appeared to indicate it was at http://fuchsia-design.com/CanvaSVG/, however, that site appears to no longer exist. Is this project (or a similar one) still on the web anywhere?

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  • Javascript and VERY LONG string

    - by StealthRT
    Hey all, i am having problems with the below code: function showTableData() { var tableArray; var x = 0; var theHTML; for (i = 0; i < 7032; i++) { if (x = 0) { theHTML = '<tr>' + '<th scope="row" class="spec">' + partNum[i] + '</th>' + '<td>' + Msrp[i] + '</td>' + '<td>' + blah[i] + '</td>' + '<td>' + blahs[i] + '</td>' + '</tr>' + theHTML; x++; }else{ theHTML = '<tr>' + '<th scope="row" class="specalt">' + partNum[i] + '</th>' + '<td class="alt">' + Msrp[i] + '</td>' + '<td class="alt">' + blah[i] + '</td>' + '<td class="alt">' + blahs[i] + '</td>' + '</tr>' + theHTML; x--; } } theHTML = '<table id="mytable" cellspacing="0">' + '<tr>' + '<th scope="col" abbr="Configurations" class="nobg">Part Number</th>' + '<th scope="col" abbr="Dual 1.8">Msrp Price</th>' + '<th scope="col" abbr="Dual 2">blahs Price</th>' + '<th scope="col" abbr="Dual 2.5">Low Price</th>' + '</tr>' + theHTML + '</table>'; $('#example').append(theHTML); } </script> <div id="example"> </div> The problem being that the $('#example').append(theHTML); never executes (or shows on the page). I think its because the string is soooooo long! It has over 7,000 items in the array so im not sure if thats the reason or if its something else? Any help would be great! Thanks! David

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  • Can run Javascript but not jQuery?

    - by blazonix
    I'm running into a strange problem - I tried running a basic function in JS and jQuery, and while the former worked, the latter didn't. JS - okay alert('Works'); jQuery - not okay $(document).ready({ alert('Works'); }); Here's some facts: My references to the jQuery library are correct (And pretty sure my Internet connection is steady :) I'm using a CDN - CloudFlare to be exact, but I've switched development mode on and Rocket Loader off - so all the code I've uploaded to the server is WYSIWYG (CloudFlare adds some stuff in the tags if you leave Rocket Loader on. I tried running the alert code in the head section, and elsewhere in the body tags, to no avail. What could have possibly gone wrong? EDIT 1: The page is here - http://casestudieslounge.com/chat/BIM/WebContent/chat.php

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  • Safari javascript cookie issue

    - by Aaron Moodie
    I've hit a bit of a weird issue in Safari in regards to setting a js cookie. The cookie itself is just a rgb colour value, which gets set using .click(), and is working fine in Chrome and Firefox, yet in Safari the value of the cookie is incomplete, showing up as rgb(193 instead of rgb(193, 184, 76) as the other browsers do. The jQuery function I'm using to set the cookie is: $('.project_link a').click(function() { var link_colour = $(this).css("color"); document.cookie = "colour="+link_colour+";expires=;path=/"; });

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  • Change ExtJS Grid Height in Javascript

    - by williamtroup
    How can I point at the object of a ExtJS Grid and manually set the height (in pixels)? For example, with this same: var grid = new Ext.grid.GridPanel({ store: store, columns: [ {id:'company',header: 'Company', width: 160, sortable: true, dataIndex: 'company'}, {header: 'Price', width: 75, sortable: true, renderer: 'usMoney', dataIndex: 'price'}, {header: 'Change', width: 75, sortable: true, renderer: change, dataIndex: 'change'}, {header: '% Change', width: 75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'}, {header: 'Last Updated', width: 85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'} ], stripeRows: true, autoExpandColumn: 'company', height: 350, width: 600, title: 'Array Grid', // config options for stateful behavior stateful: true, stateId: 'grid' }); I would i be able to point at the "grid" object and then set the size of the grid? Any help would be fantastic!

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  • javascript and extJs - scope question

    - by ben
    Hi guys, I got a little scope related problem with some js code, maybe somebody can explain to me what I'm making wrong: I'm using extJs and got this snippet: Ext.onReady(function(){ // Form for filter selection var formFilter = new Ext.FormPanel({ // ... items: [ cbGroup = new Ext.form.ComboBox({ fieldLabel: 'Group', store: dsGroups, displayField: 'name', valueField: 'number', emptyText : '- Please choose a group -', listeners:{ 'select': function() { alert(cbGroup.selectedIndex +' '+this.selectedIndex); } } }) ] }); }); The problem: When I access the combobox over 'this' within the listener function, I get the correct result for the selectIndex property. When I access the combobox over it's var name, I allways get the result '-1'. Thank a lot for your help!

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  • Image swap with a javascript onclick dropdown menu

    - by AzzyDude
    So I've got this code that has an image and when you click it a dropdown menu appears. Pretty simple. The code works fine but I'm trying to incorporate an image swap on click and I'm having difficulty. Here's the HTML and the JS (there's some CSS too, but I'll leave that out): HTML: <div id="header"> <dl class="dropdown"> <dt><a href="#"><img src="images/cogwheel_btn.png"/></a></dt> <dd> <ul> <li><a href="#">Favorites</a></li> <li><a href="#">History</a></li> </ul> </dd> </dl> </div> JS: $(document).ready(function() { $(".dropdown img.flag").addClass("flagvisibility"); $(".dropdown dt a").click(function() { $(".dropdown dd ul").toggle(); }); $(".dropdown dd ul li a").click(function() { var text = $(this).html(); $(".dropdown dt a span").html(text); $(".dropdown dd ul").hide(); $("#result").html("Selected value is: " + getSelectedValue("sample")); }); function getSelectedValue(id) { return $("#" + id).find("dt a span.value").html(); } $(document).bind('click', function(e) { var $clicked = $(e.target); if (!$clicked.parents().hasClass("dropdown")) $(".dropdown dd ul").hide(); }); $("#flagSwitcher").click(function() { $(".dropdown img.flag").toggleClass("flagvisibility"); }); });? I've tried adding lines like ("dt").empty(); and then ("dt").html("new_image") but it causes the dropdown functionality to stop working. Anyone any ideas?

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