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  • Javascript Click/Drag and Select Table rows and columns

    - by Eric V
    Hi, I am wondering if anyone knows a java script library that would add a "select" type of functionality as seen in excel/google docs where you can click and select several different parts of a row and/or column. I am looking at adding this functionality to my web application. Does anyone know where of library's preferably in java script that will be able to add this. Thanks in advance

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  • Javascript wrappers for Twitter

    - by Ravi Vyas
    I am planning to build a JS based twitter client. Information about libraries/clients is pretty old on other SO Questions. I was wondering if anyone has come across wrappers other than Spaz and TwitterHelper. Thanks :-)

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  • Passing an arbritrary JavaScript object in Xul

    - by Tom Brito
    I'm following this example to pass an object to a window, but when it as an argument it's with "undefined" value. This is my first window (obs. dump is the way to print to console when debug options are turned on): <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <!DOCTYPE window SYSTEM "chrome://XulWindowArgTest/locale/XulWindowArgTest.dtd"> <window id="windowID" width="400" height="300" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <script> <![CDATA[ function onClickMe(event) { dump("begin\n"); try { var args = { param1: true, param2: 42 }; args.wrappedJSObject = args; var watcher = Components.classes["@mozilla.org/embedcomp/window-watcher;1"].getService(Components.interfaces.nsIWindowWatcher); watcher.openWindow(null, "chrome://XulWindowArgTest/content/about.xul", "windowName", "chrome", args); } catch (e) { dump("error: " + e + "\n"); } dump("end\n"); } ]]> </script> <button label="Click me !" oncommand="onClickMe();" /> </window> and my second window: <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <!DOCTYPE window SYSTEM "chrome://XulWindowArgTest/locale/XulWindowArgTest.dtd"> <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" onload="onload()"> <script> <![CDATA[ function onload() { dump('arg = ' + window.arguments[0].wrappedJSObject + "\n"); } ]]> </script> <label value="test" /> </window> when the second window loads, it calls the onload and prints: arg = undefined Any idea how to fix it?

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  • Ruby javascript unescape equivalent

    - by vise
    I want to unescape the following string: '\u00020\u0002Standard\u00023\u0002Doe John\u000169\u0002\u0010\u0002Lorem\u0002\u0011\u0002Ipsum\u0002\u0014\u0002' Javascripts unescape function works ok, however how can I unescape it in ruby? Take in mind that unescape(previousString) is 0Standard3Doe John69LoremIpsum.

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  • Javascript : random number between variables issue

    - by Mayhem
    I've seen the other examples on this site but I just can't get it to work. I'm trying to generate a random number between 2 user input variables on a form. The numbers will always be positive numbers. min = document.getElementById('min').value; max = document.getElementById('max').value; waitTimer = Math.floor(Math.random() * (max - min + 1)) + min; When min = 5 / max = 10, waitTimer is sometimes returning results like 2, 4 and 28 and so on. What am I doing wrong?

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  • JavaScript - Loop over all a tags, add an onclick to each one

    - by tripRev
    I've got a list of links that point to images, and a js function that takes a URL (of an image) and puts that image on the page when the function is called. I was originally adding an inline onlick="showPic(this.getAttribute('href'))" to each a, but I want to separate out the inline js. Here's my func for adding an onclick to each a tag when the page loads: function prepareLinks(){ var links = document.getElementsByTagName('a'); for(var i=0; i<links.length; i++){ var thisLink = links[i]; var source = thisLink.getAttribute('href'); if(thisLink.getAttribute('class') == 'imgLink'){ thisLink.onclick = function(){ showPic(source); return false; } } } } function showPic(source){ var placeholder = document.getElementById('placeholder'); placeholder.setAttribute('src',source); } window.onload = prepareLinks(); ...but every time showPic is called, the source var is the href of the last image. How can I make each link have the correct onclick?

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  • Javascript function returning number with two decimals...?

    - by muzzledBYbrass
    I have a function to return points along a line and my return comes back with two decimal points...? For example, a return of my variable px will be something like -88.4029.032940598. vx is the x vector and mult is the distance of the line plus distance to calculate the point. Here is the operation that is returning these values: var mult = parseFloat(mag + theUnit); var px = coord_one.x_point + (vx * mult); console.log(px); Never have seen this before- I appreciate any and all help!

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  • Javascript for loop efficiency

    - by Misha Moroshko
    Is for (var i=0, cols=columns.length; i<cols; i++) { ... } more efficient than for (var i=0; i<columns.length; i++) { ... } ? In the second variant, is columns.length calculated each time the condition i<columns.length is checked ?

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  • I try to hook a character from javascript keydown event

    - by user523978
    I would like to hook a character typed in an input text field and type '1' in the field in case 'a' was pressed. Here is the code: <html> function translate_code(charCode) { switch (charCode) { case 65: // return '1' ; case 97: return '9'; } } function noEnglish(event) { if (event.charCode) { var charCode = event.charCode; } else { var charCode = event.keyCode; } if (65

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  • Javascript clone form?

    - by user202987
    I need to copy a form information with all types of elements and send it with AJAX. Tried these: 1. cloneNode on the form. - Doesn't work with IE, only copies text stuff properly. cloneNode on each element. Doesn't work with IE, only copies text stuff properly. Making new textareas for each element, and copying the value in. Doesn't work for textareas in IE, formatting is lost. I imagine a combination of those 3 would work for IE and FF but is there any decent solution to this? Shortness of code is a priority.

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  • equivalent of javascript class using JSON

    - by brz dot net
    See following class: function availItem(xs, s, m, l, xl) { this.xs = xs; this.s = s; this.m = m; this.l = l; this.xl = xl; } How can I declare the above class using JSON? I think It should be in following manner but problem is to pass argument. var availItem = { xs : xs, s : s, m : m, l : l, xl : xl }

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  • Listing known CSS classes using Javascript

    - by Fred Oliveira
    I'm trying to find a good way to collect the names of classes defined in the stylesheets included with a given document. I know about document.StyleSheetList but it doesn't seem like it'd be easy to parse. What I'm looking for is something like, for a stylesheet document such as: .my_class { background: #fff000; } .second_class { color: #000000; } I could extract an array like ["my_class", "second_class"]. This obviously assumes the favorable scenario of a fully loaded dom and stylesheets. I've been looking everywhere for a good way to do something like this and so far, have made little progress. Does anyone have any idea about how to pull this off? Thanks!

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  • Storing tree data in Javascript

    - by Ozh
    I need to store data to represent this: Water + Fire = Steam Water + Earth = Mud Mud + Fire = Rock The goal is the following: I have draggable HTML divs, and when <div id="Fire"> and <div id="Mud"> overlap, I add <div id="Rock"> to the screen. Ever played Alchemy on iPhone or Android? Same stuff Right now, the way I'm doing this is a JS object : var stuff = { 'Steam' : { needs: [ 'Water', 'Fire'] }, 'Mud' : { needs: [ 'Water', 'Earth'] }, 'Rock' : { needs: [ 'Mud', 'Fire'] }, // etc... }; and every time a div overlaps with another one, I traverse the object keys and check the 'needs' array. I can deal with that structure but I was wondering if I could do any better? Edit: I should add that I also need to store a few other things, like a short description or an icon name. So typicall I have Steam: { needs: [ array ], desc: "short desc", icon:"steam.png"},

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  • Write a row to Google Spreadsheet programmically javascript

    - by Verber
    I'm trying to find a way to insert a row into a google spreadsheet dynamically. I have a list of objects that has all the data for every column in a row. I'm just trying to run a for loop and then send the data to the row in the spread sheet. But the spreadsheet is completely empty. So I don't know if that creates certain problems or not. for(var j=0; j < masterList.length; j++) { //tried this one but it didn't pan out sheet.appendRow([ masterList[j].Date, masterList[j].Name, masterList[j].Bugs, masterList[j].Enhancements, masterList[j].Epic, masterList[j].DevOps, masterList[j].High ]); }

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  • Getting document.getElementsByName from another page PHP/javascript

    - by DarkN3ss
    so i have been looking around on how to do this but with no success. Im trying to get the value of the name test from an external website <input type="hidden" name="test" value="ThisIsAValue" /> But so far i have only found how to get the value of that with an ID <input type="hidden" id="test" name="test" value="ThisIsAValue" autocomplete="off" /> but I need to try find it without a ID is my problem. And this is an example on how to get it from the ID <?php $doc = new DomDocument; $doc->validateOnParse = true; $doc->loadHtml(file_get_contents('http://example.com/bla.php')); var_dump($doc->getElementById('test')); ?> And i have found how to get it from name and NOT ID on the same page <script> function getElements() { var test = document.getElementsByName("test")[0].value; alert(test); } </script> But again I dont know how to get the value of it by name from an external page eg "http://example.com/bla.php", any help? Thanks

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  • Instantiate a javascript module only one time.

    - by Cedric Dugas
    Hey guys, I follow a module pattern where I instantiate components, however, a lot of time a component will only be instantiate one time (example: a comment system for an article). For now I instantiate in the same JS file. but I was wondering if it is the wrong approach? It kind of make no sense to instantiate in the same file and always only once. But at the same time, if this file is in the page I want to have access to my module without instantiate from elsewhere, and IF I need another instance, I just create another from elsewhere... Here is the pattern I follow: ApplicationNamespace.Classname = function() { // constructor function privateFunctionInit() { // private } this.privilegedFunction = function() { // privileged privateFunction(); }; privateFunctionInit() }; ApplicationNamespace.Classname.prototype = { Method: function(){} } var class = new ApplicationNamespace.Classname(); What do you think, wrong approach, or is this good?

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  • Adding an additional click event to every element (JavaScript / jQuery)

    - by Gausie
    I'm developing a touchscreen application that, aside from everything else, records the amount of times the screen is used so that the user can be reminded to clean the screen after a predefined number of clicks. I've got the click functions written nicely, all I need now is make sure the function is called on a click. I imagine $('*').click(function() { //do something }); would accomplish my goal, but is that the best way? Also, would that overwrite other click functions assigned to the elements?

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  • Ternary Operators in JavaScript Without an "Else"

    - by Oscar Godson
    I've been using them forever, and I love them. To me they see cleaner and i can scan faster, but ever since I've been using them i've always had to put null in the else conditions that don't have anything. Is there anyway around it? E.g. condition ? x=true : null ; basically, is there a way to do: condition ? x=true; Now it shows up as a syntax error...

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  • global variables doesn't change value in Javascript

    - by user1856906
    My project is composed by 2 html pages: 1)index.html, wich contains the login and the registration form. 2)user_logged.html, wich contains all the features of a logged user. Now, what I want to do is a control if the user is really logged, to avoid the case where a user paste a url in the browser and can see the pages of another user. hours as now, if a user paste this url in the browser: www.user_loggato.html?user=x#profile is as if logged in as user x and this is not nice. My html pages both use js files that contains scripts. I decided to create a global variable called logged inizialized to false and change the variable to true when the login is succesfull. The problem is that the variable, remains false. here is the code: var logged=false; (write in the file a.js) while in the file b.js I have: function login() { //if succesfull logged=true; window.location.href = "user_loggato.html?user="+ JSON.parse(str).username + #profilo"; Now with some alerts I found that my variable logged is always false. Why? if I have not explained well or if there is not some information in order to respond to my question let me know.

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  • JavaScript Date Function

    - by Darren Cook
    Hi, I'm using the following function that changes a calendar selection at a set time during the day (all code works perfectly). However, I'd like to modify it slightly so that on a SATURDAY the dd=dd+1 becomes dd=dd+2, because I want to skip Sunday. Can anyone help? $(function() { var dd = 0 if (<%= currentHour %> > <%= cutoffHour %>) { dd = dd + 1; // go one day in the future }

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