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• Graph drawing for the Web 2.0

  - by tokel

  Hi. There are a lot of chart drawing libraries out there, but what I am looking for is an interactive(!) graph (nodes and edges) drawing library. At best some kind of AJAX, but I am also open for other technologies (Java, Flash). However I would really prefer an AJAX implementation. Also only Open Source framework suggestions please (I already know about yFiles). The thing I have in mind is a bit like GWTUML. That is quite nice already, but misses an API for their graph drawing. It seems that it is an custom implementation for their product. Also some layout algorithms would be nice. Is there really no library around for that task? I wonder a bit as there are so many chart libraries available. Let me emphasize again (seems to be necessary cause of the first two comments): I am NOT looking for another chart library! Regards, Kai P.S. Things I know about already: JUNG (Java), Prefuse (Java), GINY (Java), yFiles (AJAX, but not Open Source). Just another graph library I found (Javascript, not sure if it is still maintained): Graph Gear

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• Does anyone knows any Train-table-api service?

  - by DaNieL

  Hi guys, im wondering if there is any online service who provide API about the train timetables (arrivals, departure, etch..), at least for the european stations. I know www.bahn.de, who provide the accurated timetables for many european countries, but i didin't find any similar to a api service. My goal (well, just a future-project) is to develope an application like gmaps, but instead of giving the car-trip i would like to give the train-trip.. you know, the user set the departure day, time and station, then the first arrival, maybe then add another one, and so on. So, there is something like, that can be queryed by php/python/javascript? Edit: if can help, im wondering to build a service to plan an inter-rail trip! (and any help will be really appreciate) Im stuck. Google's public-service api rely on the information that every local company makes avaiable, much branches are missing (for example, is almost impossible to use it to build an itinerary that touches two or more regions of Europe. As i said before, the only service that i know doing it good is the bahn.de, they really have all the data.. but no api. I tryed to parse theyre result page (in order to use them as API), but seem like the markup is been build exactly to avoid that.. maybe they have business plans behind that or whatever, but i dont think they will ever release some API.. so, my project is going on without this function (p.s: my project is about non-profit cultural organizations, we wont make war to anyone ;P) @El Goorf: if you find a way, and consider the idea of sharing it, count on my hand if need help!

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• Greasemonkey script for inserting math in gmail

  - by Elazar Leibovich

  I wish an easy way to communicate mathematical equations with gmail. There's a javascript script called AsciiMath, which should translate Tex-like equations into standard mathML. I thought that it would be nice to use this script with GM. I thought that before sending the email, this script would convert all the TeX-like equations in your email to MathML. Thus the reader which is using FF (or IE with MathPlayer installed) would be able to easily read those equations. Ideally, I wish to somehow keep the original TeX-like equations in a plain-text message, so that it would be readable by plain text email clients, such as mutt. Obviously the weakest link here is the client software, which most likely doesn't support MathML. Still if my correspondent is using Firefox and some kind of webmail (which is pretty reasonable) - it should work. My question is, is it possible? Did anyone do that? Do you see any technical problems with this approach (gmail filtering the MathML, client not parsing it correctly etc.)? Any smarter ideas?

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• jQuery - Could use a little help with a content loader

  - by Kenny Bones

  Hi, I'm not very elite when it comes to JavaScript, especially the syntax. So I'm trying to learn. And in this process I'm trying to implement a content loader that basically removes all content from a div and inserts content from another div from a different document. I've tried to do this on this site: www.matkalenderen.no - Check the butt ugly link there. See what happens? I've taken the example from this site: http://nettuts.s3.cdn.plus.org/011_jQuerySite/sample/index.html#index But I'm not sure this example actually works the way I think it does. I mean, if the code just wipes out existing content from a div and inserts content from another div, why does the other webpages in this example include doctype and heading etc etc? Wouldn't you just need the div and it's content? Without all the other stuff "around"? Maybe I don't get how this works though. Thought it worked mosly like include really. This is my code however: $(document).ready(function() { var hash = window.location.hash.substr(1); var href = $('#dynloader a').each(function(){ var href = $(this).attr('href'); if(hash==href.substr(0,href.length-5)){ var toLoad = hash+'.html #container'; $('#container').load(toLoad) } }); $('#dynloader a').click(function(){ var toLoad = $(this).attr('href')+' #container'; $('#container').hide('fast',loadcontainer); $('#load').remove(); $('#wrapper').append('<span id="load">LOADING...</span>'); $('#load').fadeIn('normal'); window.location.hash = $(this).attr('href').substr(0,$(this).attr('href').length-5); function loadcontainer() { $('#container').load(toLoad,'',showNewcontainer()) } function showNewcontainer() { $('#container').show('normal',hideLoader()); } function hideLoader() { $('#load').fadeOut('normal'); } return false; }); });

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• d3.js force layout increase linkDistance

  - by user1159833

  How to increase linkDistance without affecting the node alignment, example: http://mbostock.github.com/d3/talk/20110921/force.html when I try to increase the circle radius and linkDistance the it collapse <script type="text/javascript"> var w = 1280, h = 800, z = d3.scale.category20c(); var force = d3.layout.force() .size([w, h]); var svg = d3.select("#chart").append("svg:svg") .attr("width", w) .attr("height", h); svg.append("svg:rect") .attr("width", w) .attr("height", h); d3.json("flare.json", function(root) { var nodes = flatten(root), links = d3.layout.tree().links(nodes); force .nodes(nodes) .links(links) .start(); var link = svg.selectAll("line") .data(links) .enter().insert("svg:line") .style("stroke", "#999") .style("stroke-width", "1px"); var node = svg.selectAll("circle.node") .data(nodes) .enter().append("svg:circle") .attr("r", 4.5) .style("fill", function(d) { return z(d.parent && d.parent.name); }) .style("stroke", "#000") .call(force.drag); force.on("tick", function(e) { link.attr("x1", function(d) { return d.source.x; }) .attr("y1", function(d) { return d.source.y; }) .attr("x2", function(d) { return d.target.x; }) .attr("y2", function(d) { return d.target.y; }); node.attr("cx", function(d) { return d.x; }) .attr("cy", function(d) { return d.y; }); }); }); function flatten(root) { var nodes = []; function recurse(node, depth) { if (node.children) { node.children.forEach(function(child) { child.parent = node; recurse(child, depth + 1); }); } node.depth = depth; nodes.push(node); } recurse(root, 1); return nodes; } </script>

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• IE: Undocumented "cache" attribute defined for input elements?

  - by aefxx

  Hi everybody. I've stumpled upon a strange behavior in IE(6/7/8) that drives me nuts. Given the following markup: <input type="text" value="foo" class="bar" cache="yes" send="no" /> Please note that the cache attribute is set to yes. However IE somehow manages to change the attributes value to cache="cache" when rendering the DOM. So, I wonder, is there an undocumented feature that I'm not aware of? I've googled about an hour now but couldn't find any info on this (not even on MSDN). NOTE I'm aware that adding custom attributes is non-standard compliant and that boolean attributes should be noted as attribute="attribute. Nevertheless I have to cope with these as they were introduced long before I joined the team. These custom attributes are used in conjunction with javascript to provide a more user friendly approach to form handling (and it works out quite well with Firefox/Safari/Opera/Chrome). I know that I could simply convert these custom attributes to x-data attributes that will be introduced with HTML5 but that would take me several hours of extra work - sigh. Hope, I made myself clear. Thanks in advance.

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• Raphael JS image animation performance.

  - by michael

  Hi, I'm trying to create an image animation using Raphael JS. I want the effect of a bee moving randomly across the page, I've got a working example but it's a bit "jittery", and I'm getting this warning in the console: "Resource interpreted as image but transferred with MIME type text/html" I'm not sure if the warning is causing the "jittery" movement or its just the way I approached it using maths. If anyone has a better way to create the effect, or improvements please let me know. I have a demo online here and heres my javascript code: function random(min, max) { return Math.floor(Math.random() * (max - min + 1)) + min; } function BEE(x, y, scale) { this.x = x; this.y = y; this.s = scale; this.paper = Raphael("head", 915, 250); this.draw = function() { this.paper.clear(); this.paper.image("bee.png", this.x, this.y, 159*this.s, 217*this.s); } this.update = function() { var deg = random(-25, 25); var newX = Math.cos(Raphael.rad(deg)) * 2; var newY = Math.sin(Raphael.rad(deg)) * 2; this.x += newX; this.y += newY; if( this.x > 915) { this.x = 0; } if( this.y > 250 || this.y < 0 ) { this.y = 125; } } } $(document).ready(function() { var bee = new BEE(100, 150, 0.4); var timer = setInterval(function(){ bee.draw(); bee.update(); }, 15); }

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• jQuery menu active link

  - by antosha

  Hello, I am trying to make a jquery menu that when I click on one of the links (without reloading the page), it changes its class to "active" and removes this class when I click on another link. here is my code : <script type="text/javascript"> $(document).ready(function() { $(".buttons").children().("a").click(function() { $(".buttons").children().toggleClass("selected").siblings().removeClass("selected"); }); }); </script> <ul class="buttons"> <li><a class="button" href="#">Link1</a></li> <li><a class="button" href="#">Link2</a></li> <li><a class="button" href="#">Link3</a></li> <li><a class="button" href="#">Link4</a></li> </ul> Can someone tell me why my code is not working and how to fix it? Thanks :)

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• Retrieve JSON with stackoverflow API

  - by ArtWorkAD

  Hi, I want to retrieve the information of my stackoverflow profile as JSON using the api. So I use this link http:/api.stackoverflow.com/1.0/users/401025/. But when I make the request I get a file containing the JSON data. How do I deal with that file using javascript? Here is my code (http://jsfiddle.net/hJhfU/2/): <html> <head> <script> var req; getReputation(); function getReputation(){ req = new XMLHttpRequest(); req.open('GET', 'http://api.stackoverflow.com/1.0/users/401025/'); req.onreadystatechange = processUser; req.send(); } function processUser(){ var res = JSON.parse(req.responseText); alert('test'); } </script> </head> The alert is never fired and req.responseText seems to be empty. Any ideas?

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• Using "Object.create" instead of "new"

  - by Graham King

  Javascript 1.9.3 / ECMAScript 5 introduces Object.create, which Douglas Crockford amongst others has been advocating for a long time. How do I replace new in the code below with Object.create? var UserA = function(nameParam) { this.id = MY_GLOBAL.nextId(); this.name = nameParam; } UserA.prototype.sayHello = function() { console.log('Hello '+ this.name); } var bob = new UserA('bob'); bob.sayHello(); (Assume MY_GLOBAL.nextId exists). The best I can come up with is: var userB = { init: function(nameParam) { this.id = MY_GLOBAL.nextId(); this.name = nameParam; }, sayHello: function() { console.log('Hello '+ this.name); } }; var bob = Object.create(userB); bob.init('Bob'); bob.sayHello(); There doesn't seem to be any advantage, so I think I'm not getting it. I'm probably being too neo-classical. How should I use Object.create to create user 'bob'?

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• Inserting new <TD> elements into a table row.

  - by Hunter S. Smythe

  I have created a small application written in XHTML, JavaScript/JQuery and PHP. The PHP reads and writes to a small SQLite database. How would i go about inserting cells into a pre-scripted table. The cells would need to be configured using some information from my database. For example, below are two cells with their data retrieved from my database: Cell One Starts: 120px; Finishes: 180px; Background: Blue; Cell Two Starts: 240px; Finishes: 300px; Background: Green; On my table row, it is 500px in width. How would I insert the cells above into the row. In this example, the first cell would start 120px into the row and have a width of 180px. The second cell would start 240px into the row and have a width of 300px. I just cant seem to work out a way of doing this, any ideas would be very helpful. Thank you for any input, all is appreciated. Hunter.

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• Changing classes on multiple divs when selecting specific radio buttons

  - by Rob

  Hey everyone I got a javascript problem I can't seem to find a specific solution for on the web. What I want to be able to do is select one of the radio buttons and have that change the class of #home-right to either .rackmount or .shipping and add the class of .displaynone to the type of dimensions I don't want shown. <div id="home-right" class="rackmount"> <h4 class="helvneuebcn">Case Finder</h4> <div class="cta-options"> <input type="radio" value="Shipping and Storage" name="" checked> Shipping and Storage<br/> <input type="radio" value="Rackmount Enclosures" name=""> Rackmount Enclosures<br/> </div> <div class="shipping-dimensions displaynone"> <div class="dimensions"><input type="text" class="size"><span class="helvneuemd">H x </span></div> <div class="dimensions"><input type="text" class="size"><span class="helvneuemd">W x </span></div> <div class="dimensions"><input type="text" class="size"><span class="helvneuemd">L</span></div> </div> <div class="rackmount-dimensions"> <div class="dimensions"><input type="text" class="size"><span class="helvneuemd">U Height x </span></div> <div class="dimensions"><input type="text" class="size"><span class="helvneuemd">Rack Depth</span></div> </div> <div class="clear"></div> <input type="button" value="Submit" class="findcase"> </div>

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• Why do people have to use multiple versions of jQuery on the same page?

  - by reprogrammer

  I have noticed that sometimes people have to use multiple versions of jQuery in the same page (See question 1 and question 2). I assume people have to carry old versions of jQuery because some pieces of their code is based on an older version of jQuery. Obviously, this approach causes inefficiency. The ideal solution is to refactor the old code to use the newer jQuery API. I wonder if there are tools that automate the process of upgrading a piece of code to use a newer version of jQuery. I've never written programs in in either Javascript or jQuery. So, I'd like to hear from programmers experienced in these language about their opinion on this issue. In particular, I'd like to know the following. How much of problem it is to have to load multiple versions of jQuery? Have you ever had to load multiple versions of any other library in the same page? Do you know of any refactoring tools that helps you migrate your code to use the updated API? Do you think such a refactoring tool is useful? Are you willing to use it?

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• [JS] getSelection on DIV contentEditable

  - by cactoos

  Hi all ! I am trying to achieve project and i must do a WYSIWYG editor in JavaScript. I can't use an existing editor because I need use my plugins (for example a colorPicker or imagePicker).. For this time I have this HTML : <div class="K_editor" id="idExample"> <div class="K_links"> <div class="K_editor_link K_editor_linkBold">B</div> <div class="K_editor_link K_editor_linkItalic">I</div> <div class="K_editor_link K_editor_linkUnderline">U</div> </div> <iframe width="696" height="212" frameborder="0" src="js/myEditor_iFrame.php"> <html> <head/> <body> <div id="contentIframe" contenteditable="true"> This is a test code, with <strong>bold</strong> text and <em>italic</em> text. </div> </body> </html> </iframe> <input type="submit"/> </div> On event click on ".K_editor_link", a function is open with arguments : - tagStart (exemple '', or '') - tagEnd (exemple '', or '') - id (here 'idExample') I know get a Selection on Textarea but "setSelectionRange()", ".selectionStart" and ".selectionEnd" are only for textbox (XUL), input (XHTML) or textarea (XHTML). Why can I do for do that ?? I'm realy block.. Thank all ! CactO_o's

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• PHP jQuery Long Polling Chat Application

  - by Tejas Jadhav

  I've made a simple PHP jQuery Chat Application with Short Polling (AJAX Refresh). Like, every 2 - 3 seconds it asks for new messages. But, I read that Long Polling is a better approach for Chat applications. So, I went through some Long Polling scripts. I made like this: Javascript: $("#submit").click(function(){ $.ajax({ url: 'chat-handler.php', dataType: 'json', data: {action : 'read', message : 'message'} }); }); var getNewMessage = function() { $.ajax({ url: 'chat-handler.php', dataType: 'json', data: {action : 'read', message : 'message'}, function(data){ alert(data); } }); getNewMessage(); } $(document).ready(getNewMessage); PHP <?php $time = time(); while ((time() - $time) < 25) { $data = $db->getNewMessage (); if (!empty ($data)) { echo json_encode ($data); break; } usleep(1000000); // 1 Second } ?> The problem is, once getNewMessage() starts, it executes unless it gets some response (from chat-handler.php). It executes recursively. But if someone wants to send a message in between, then actually that function ($("#submit").click()) never executes as getNewMessage() is still executing. So is there any workaround?

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• how to: dynamically load google ajax api into chrome extension content script

  - by Hoff

  Hi there, I'm trying to make use of google's ajax apis in a chorme extension's "content script". On a regular html page, I would just do this: <script src="http://www.google.com/jsapi"></script> <script> google.load("language", "1"); </script> But since I'm trying to load the tranlation library dynamically from js code, I've tried: script = document.createElement("script"); script.src = "http://www.google.com/jsapi"; script.type = "text/javascript"; document.getElementsByTagName("head")[0].appendChild(script); google.load('language','1') but the last line throws the following error: Uncaught TypeError: Object # has no method 'load' Funny enough, when i enter the same "google.load('language','1')" in chrome's js console, it works as intended... I've also tried with jquery's .getScript() but the same problem persists... Does anybody have any clue what might be the problem and how it could be solved? Many thanks in advance! Martin

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• Twitter OAuth, Error when trying to POST direct message.

  - by Darxval

  So I am building a java script that is used in conjunction of my C++ application for sending direct messages to users. the script does the work of building the request that i send. When i send a request i receive "Incorrect signature" or "can not authenticate you" Does anyone see something i am missing or am doing wrong? I am continuing to investigate. Thank you in advance Javascript: var nDate = new Date(); var epoch = nDate.getTime(); var nounce = ""; nounce = Base64.encode(epoch+randomString()); var Parameters = [ "oauth_consumerkey="+sConsumerKey, "oauth_nonce="+nounce, "oauth_signature_method=HMAC-SHA1", "oauth_timestamp="+epoch, "oauth_token="+sAccessToken, "oauth_version=1.0", "text="+sText, "user="+sUser]; var SortedParameters = Parameters.sort(); var joinParameters = SortedParameters.join("&"); var encodeParameters = escape(joinParameters); signature_base_string = escape("POST&"+NormalizedURL+"&"+encodeParameters); signature_key = sConsumerSecret+"&"+sAccessSecret; signature = Base64.encode(hmacsha1(signature_base_string,signature_key)); sAuthHeader = " OAuth realm=, oauth_nonce="+nounce+", oauth_timestamp="+epoch+", oauth_consumer_key="+sConsumerKey+", oauth_signature_method=HMAC-SHA1, oauth_version=1.0, oauth_signature="+signature+", oauth_token="+sAccessToken+", text="+sText; goNVOut.Set("Header.Authorization: ", sAuthHeader);

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• Scripting for JAVA - a problem to solve

  - by Parhs

  Hello.. I had no luck to find a good way to achieve the following: suppose i let the user to write a condition using javascript INS5 || ASTO.valueBetween(10,210) ... etc.... I tried to find a way to get the variables name...from JAVA... Rhino library didnt help a lot... However i found that handling exceptions i could get all the identifiers! Everything is great but one little problem..... How teh heck i can replace these identifiers with the numeric id of each var ? eg INS to be _234 ASTO to be _331 ? I want to to this replace because the name may change... I could do it using a replace but i know that this isnt easy because... 1) replacing _23 with MPLAH may replace also _234...(this could be fixed with regexp somehow..) 2)what if _23 is in a comment section ? rare to happen but possible /* _23 fdsafd ktl */ it should be replaced... 3)what if is a name of a function ??? _32() {} rare but shouldnt be replaced 4) what if it is enclosed in "" or ''??? And i am sure that there should me a lot more cases..... any ideas ? thank yoyu for your time

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• Upload image from Silverlight to ASP .net MVC 2.0 Action

  - by Raha

  Hello ... I have been trying really hard to Upload a photo from a Silverlight app to ASP .net MVC app. I simply use WebClient like this in Silverlight : private bool UploadFile(string fileName, Stream data) { try { UriBuilder ub = new UriBuilder("http://localhost:59933/Admin/Upload"); ub.Query = string.Format("filename={0}", fileName); WebClient wc = new WebClient(); wc.OpenReadCompleted += (sender, e) => { PushData(data, e.Result); e.Result.Close(); data.Close(); }; wc.OpenWriteAsync(ub.Uri); } catch (Exception) { throw; } return true; } private void PushData(Stream input, Stream output) { byte[] buffer = new byte[4096]; int byteRead; while ((byteRead = input.Read(buffer, 0, buffer.Length)) != 0) { output.Write(buffer, 0, byteRead); } } On the other hand I have created a simple action called Upload like this: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Upload() { //Some code here } The problem is that it doesn't hit the break point in Upload method. Is this even possible ? The reason why I am using Silverlight is that I want to preview the image before uploading it to server and it is very simple in Silverlight. I failed to do that in JavaScript and that is why Silverlight might be more useful here.

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• Three.js: texture to datatexture

  - by Alessandro Pezzato

  I'm trying to implement a delayed webcam viewer in javascript, using Three.js for WebGL capabilities. I need to store frames grabbed from webcam, so they can be shown after some time (some milliseconds to some seconds). I'm able to do this without Three.js, using canvas and getImageData(). You can find an example on jsfidle. I'm trying to find a way to do this without canvas, but using Three.js Texture or DataTexture object. Here an example of what I'm trying. The problem is that I cannot find how to copy the image from a Texture (image is of type HTMLVideoElement) to another. In rotateFrames() function the older frame should be lost and newer should replace, like in a FIFO. But the line frames[i].image = frames[i + 1].image; is just copying the reference, not the texture data. I guess DataTexture should do this, but I'm not able to get a DataTexture out of a Texture or HTMLVideoElement. Any idea?

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• Rails ajax jquery problem

  - by user283179

  Ok I have this problem I'm trying to use Jquery to load a partial in replace of a listed object. loadshow: $(function() { $(".style_image_<%= style.id %> a").click(function() { $(".style_image_<%= style.id %>").html("loading... ") $(".style_image_<%= style.id %>").html("<%= escape_javascript(render("show")) %>") $.get(this.href, null, null, "html"); return false; }); }); _show.html.erb: <%=link_to image_tag(style.cover.pic.url(:normal)), style %> I'm getting this error: missing ) after argument list [Break on this error] $(".style_image_<%= style.id %>").htm...scape_javascript(render("show")) %>")\n There is two problems with my code here the first is the click function is not targeting the .style_image_<%= style.id % .... i.e (.style_image_42) if I replace the css target with 42 instead of _style.id the click target works; why is this? And with or without this change the _show partial is not render and the above error is given. Not really that good with Javascript any help would be great! P.s. The effect I really want is like one of those super cool cargo themes: http://cargocollective.com/publikspace Thanks Dan!

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• Some regular expression help?

  - by Rohan

  Hey there. I'm trying to create a Regex javascript split, but I'm totally stuck. Here's my input: 9:30 pm The user did action A. 10:30 pm Welcome, user John Doe. ***This is a comment 11:30 am This is some more input. I want the output array after the split() to be (I've removed the \n for readability): ["9:30 pm The user did action A.", "10:30 pm Welcome, user John Doe.", "***This is a comment", "11:30 am This is some more input." ]; My current regular expression is: var split = text.split(/\s*(?=(\b\d+:\d+|\*\*\*))/); This works, but there is one problem: the timestamps get repeated in extra elements. So I get: ["9:30", "9:30 pm The user did action A.", "10:30", "10:30 pm Welcome, user John Doe.", "***This is a comment", "11:30", "11:30 am This is some more input." ]; I cant split on the newlines \n because they aren't consistent, and sometimes there may be no newlines at all. Could you help me out with a Regex for this? Thanks so much!!

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• Make browser to go back by reloading page 1st and then scrolling it back again too

  - by Marco Demaio

  EXPLAINING WHAT I'M TRYING TO SOLVE: I have a webpage (file_list.php) showing a list of files, and next to each file there is a button to delete it. When user press the DELETE button close to a certain file name, the browser goes to a script called delete_file.php that deletes the file and then it tells browser to go back to the file_list.php delete_file.php uses a simple header("Location: file_list.php”); to go back to file_list.php When browser goes back to file_list.php it reloads the page, but it DOES NOT scroll it back again to where the user was before. So let's say the user scrolled the files list and deleted the last file, when the browser shows again the page file_list.php it won't be scrolled to the bottom of the page again. THE WORKAROUND I CAME OUT WITH: I found a strange way to work around this, basically instead of using header("Location: file_list.php”); in delete_file.php I simply use a javascript call window.history.go(-1). This workaround works perfectly when user is in session (simply using PHP session_start function): the browser RELOADS the file_list.php page and then scrolls it also bask to where it was before. But if the user is NOT in session the browser scrolls the page but IT DOES NOT RELOAD IT before, so the user would still see the file he deleted in the file list. THE QUESTIONS Do you know how to reproduce the behavior of the browser when goes back being in session even if we are not in session? Do you know a way out of this, even another way of solving this matter? Thanks! *I know I could use AJAX to delete the file so I would not have to go every time to delete_file.php, but this is not the answer*.

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• onfocus="this.blur();" problem

  - by carpenter

  // I am trying to apply an "onfocus="this.blur();"" so as to remove the dotted border lines around pics that are being clicked-on // the effect should be applied to all thumb-nail links/a-tags within a div.. // sudo code (where I am): $(".box a").focus( // so as to effect only a tags within divs of class=box | mousedown vs. onfocus vs. *** ?? | javascript/jquery... ??? function () { var num = $(this).attr('id').replace('link_no', ''); alert("Link no. " + num + " was clicked on, but I would like an onfocus=\"this.blur();\" effect to work here instead of the alert..."); // sudo bits of code that I'm after: // $('#link_no' + num).blur(); // $(this).blur(); // $(this).onfocus = function () { this.blur(); }; } ); // the below works for me in firefox and ie also, but I would like it to effect only a tags within my div with class="box" function blurAnchors2() { if (document.getElementsByTagName) { var a = document.getElementsByTagName("a"); for (var i = 0; i < a.length; i++) { a[i].onfocus = function () { this.blur(); }; } } }

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• Win8: Accessing page elements in default.html outside of default.js

  - by Arvin

  I have the following page elements within default.html: <div id ="content"> <div id="output"></div> </div> And within default.js: ... args.setPromise(WinJS.UI.processAll().done(function() { var theOutput = document.getElementById("output"); theOutput.innerText = "This is the output"; })); .... This successfully produces the app that just has the text "This is the output" But if I move this into a new script script.js: (function () { "use strict"; var theOutput = document.getElementById("output"); theOutput.innerText = "This is the output"; }()); And added script.js as a script reference in default.html: <script src="/js/script.js"></script><script src="/js/script.js"></script> I get the error JavaScript runtime error: Unable to set property 'innerText' of undefined or null reference How do I access the output div in other scripts outside of default.js?

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