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  • Destructuring assignment problem

    - by Eli Grey
    Why does for ([] in iterable); work fine but [void 0 for ([] in iterable)] throw a syntax error for invalid left-hand assignment? For example, I would expect the following code to work, but it doesn't (the assertion isn't even done due to the syntax error): let (i = 0, iterable = (i for (i in [1, 2, 3, 4]))) { for ([] in iterable) i++; console.assertNotGreater([void 0 for ([] in iterable)].length, i); }

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  • JQuery: Toggle submit button according to if terms are agreed with or not

    - by Svish
    I have a checkbox with id terms and a submit button in my form with class registration. I would like the submit button to be disabled initially, and then to be toggled on and off whenever the user toggle on and off the terms checkbox. I would also like to have a confirmation dialog pop up when the submit button is clicked and that if it is confirmed the submit button will be disabled again (to prevent duplicate clicking). I have gotten the last part and the first part working (I think), but I can't figure out how to get the toggling working. This is what I have so far: $(document).ready(function() { // Disable submit button initially $('form.registration input[type=submit]').attr('disabled', 'disabled'); // Toggle submit button whenever the terms are accepted or rejected $('#terms').change(function() { if($('#terms:checked').val() !== null) $('input[type=submit]', this).attr('disabled', ''); else $('input[type=submit]', this).attr('disabled', 'disabled'); }); // Ask for confirmation on submit and disable submit button if ok $('form.registration').submit(function() { if(confirm('Have you looked over your registration? Is everything correct?')) { $('input[type=submit]', this).attr('disabled', 'disabled'); return true; } return false; }); }); Could someone help me make this work? I'm a total JQuery newb at the moment, so any simplifications and fixes are welcome as well.

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  • jQuery plug-in to remap numeric keypad

    - by Álvaro G. Vicario
    Is there a jQuery plug-in to remap the "dot" key in the numeric keypad? The purpose is to make it print a decimal separator, rather than a dot, in languages that use commas or other characters. I'd like to mimic the behaviour of some desktop applications like MS Excel. (It's okay to hard-code the output character.)

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  • Append a .css file to an iframe so styles can be overrided

    - by Toni Michel Caubet
    i am trying like this: $(document).ready(function(){ $('#muestraMotor').bind('mousedown',function(){ var cssLink = document.createElement("link"); cssLink.href = "../estilo/css/datepicker.css"; cssLink .rel = "stylesheet"; cssLink .type = "text/css"; frames['cboxIframe'].document.body.appendChild(cssLink); }); }) where cboxIframe is the id of the iframe, Firebug jumps: frames.cboxIframe is undefined [Detener en este error] frames['cboxIframe'].document.body.appendChild(cssLink);

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  • How to get around the jslint error 'Don't make functions within a loop.'

    - by Ernelli
    I am working on making all of our JS code pass through jslint, sometimes with a lot of tweaking with the options to get legacy code pass for now on with the intention to fix it properly later. There is one thing that jslint complains about that I do not have a workround for. That is when using constructs like this, we get the error 'Don't make functions within a loop.' for (prop in newObject) { // Check if we're overwriting an existing function if (typeof newObject[prop] === "function" && typeof _super[prop] === "function" && fnTest.test(newObject[prop])) { prototype[prop] = (function (name, func) { return function () { var result, old_super; old_super = this._super; this._super = _super[name]; result = func.apply(this, arguments); this._super = old_super; return result; }; })(prop, newObject[prop]); } This loop is part of a JS implementation of classical inheritance where classes that extend existing classes retain the super property of the extended class when invoking a member of the extended class. Just to clarify, the implementation above is inspired by this blog post by John Resig. But we also have other instances of functions created within a loop. The only workaround so far is to exclude these JS files from jslint, but we would like to use jslint for code validation and syntax checking as part of our continuous integration and build workflow. Is there a better way to implement functionality like this or is there a way to tweak code like this through jslint?

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  • HTML 5 Canvas - Dynamically include multiple images in canvas

    - by Ron
    I need to include multiple images in a canvas. I want to load them dynamically via a for-loop. I tried a lot but in the best case only the last image is displayed. I check this tread but I still get only the last image. For explanation, here's my latest code(basically the one from the other post): for (var i = 0; i <= max; i++) { thisWidth = 250; thisHeight = 0; imgSrc = "photo_"+i+".jpg"; letterImg = new Image(); letterImg.onload = function() { context.drawImage(letterImg,thisWidth*i,thisHeight); } letterImg.src = imgSrc; } Any ideas?

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  • Aborting jQuery().load()

    - by Daniel I-S
    The .load() function of the jQuery library allows you to selectively load elements from another page (subject to certain rules). I would like to know whether it is possible to abort the load process. In our application, a user can browse a list of items. They may choose to click a button which loads and displays additional information about an item from another document (which can take some time). If they choose a different item in the list whilst a .load() is still happening, I would like the loading to be aborted. Is this possible? Is it even worth it? Any ideas? Dan

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  • Not all parameters get sent in jquery ajax call

    - by rksprst
    I have a strange error where my jquery ajax request doesn't submit all the parameters. $.ajax({ url: "/ajax/doAssignTask", type: 'GET', contentType: "application/json", data: { "just_a_task": just_a_task, "fb_post_date": fb_post_date, "task_fb_postId": task_fb_postId, "sedia_task_guid": sedia_task_guid, "itemGuid": itemGuid, "itemType": itemType, "taskName": taskName, "assignedToUserGuid": assignedToUserGuid, "taskDescription": taskDescription }, success: function(data, status) { //success code }, error: function(xhr, desc, err) { //error code } }); But using firebug (and debugging) I can see that only these variables are posted: assignedToUserGuid itemGuid itemType just_a_task taskDescription taskName It's missing fb_post_date, task_fb_postId, and sedia_task_guid I have no idea what would cause it to post only some items and not others? Anyone know? Data is sent to asp.net controller that returns jsonresult (hence the contentType) Any help is appreciated. Thanks!

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  • Google maps api - polygon mouseover

    - by es11
    I am using google maps API v3 and have created several polygons on the map. I want the functionality that when the user hovers over a given area (polygon) the individual polygon changes color. Is there any way to do this? (Later I'd like to be able to register mouse events on the given area as well). thanks.

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  • jEditable - how do I get the edited textfield variable?

    - by Forkrul Assail
    I have a table that I use jEditable with. Saving to the server works, but the callback for refreshing my table element (that I just edited and saved to the server) does not work. /* Apply the jEditable handlers to the table */ $('#example tbody td').editable( '<%= url_for :controller => 'impact_matrix', :action => 'post', :scenario => params[:id] %>', { "callback": function( sValue, y ) { ^ goes missing var aPos = oTable.fnGetPosition( this ); oTable.fnUpdate( sValue, aPos[0], aPos[1] ); }, "submitdata": function ( value, settings ) { temp = value return { "row_id": this.parentNode.getAttribute('id') }; }, sValue (that I point to in the code) - seems to be blank. I do get values for aPos[0] and aPos[1], but not sValue. Could someone please explain to me 'what triggers the callback function?' Or, if I could just see where to get the 'newly edited text' and then just run fnUpdate() on that, I'd be fine. Thanks in advance for your help.

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  • Jquery AJAX and figuring out how NOT to nest callbacks for multiple reloads.

    - by David H
    I have a site with a few containers that need to load content dynamically via AJAX. Most of the links inside of the containers actually load new data in that same container. I.E: $("#navmenu_item1").click(function() { $("#navmenu").load(blah); }); When I click on a link, lets say "logout," and the menu reloads with the updated login status, none of the links now work because I would need to add a new .click into the callback code. Now with repeated clicks and AJAX requests I am not sure how to move forward from here, as I am sure nested callbacks are not optimal. What would be the best way to do this? Do I include the .click event inside the actual AJAX file being pulled from the server, instead of within index.php? Or can I somehow reload the DOM? Thanks for the help!

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  • using moogaloop to embed a custom video player from Vimeo

    - by scullytr
    Anyone have any luck using Vimeo's moogaloop player? I'm wanting to use Vimeo's supposed API functions to create custom buttons to control the Vimeo player on my site. Here's the reference page for moogaloop: http://vimeo.com/api/docs/moogaloop I've been able to get the player to embed using SWFObject, but I can't seem to get the API functions to work (e.g. api_play()). Any help is greatly appreciated. Thanks! -Tim.

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  • Dumping out Value on firebug console using jQuery

    - by Rachel
    Hello, I come from PHP background and am used to doing var_dump, echo and print_r while doing some kind of debugging. I have just started on jquery, today is my first day infact and am trying to see if there is a way to dump out value to firebug console. Do we have similar function to var_dump or echo in jQuery or any other way to get values or debug statements displayed on the console ?

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  • document.getElementById not working in IE

    - by Alloi
    Hi, I am using the below js code in order to change the class when a link is clicked. document.getElementById("gifts").setAttribute("class", "gkvSprite selected"); This is not working in IE but it does in FF and Chrome Then I changed the code to : document.getElementById("gifts").setAttribute("className", "gkvSprite selected"); Then it worked in IE stopped working in FF and Chrome. Could someone please help me out here? Thanks in Advance Alloi

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  • Invalid conversion from int to int

    - by FOXMULDERIZE
    #include <iostream> #include<fstream> using namespace std; void showvalues(int,int,int []); void showvalues2(int,int); void sumtotal(int,int); int main() { const int SIZE_A= 9; int arreglo[SIZE_A]; ifstream archivo_de_entrada; archivo_de_entrada.open("numeros.txt"); int count,suma,total,a,b,c,d,e,f; int total1=0; int total2=0; //lee/// for(count =0 ;count < SIZE_A;count++) archivo_de_entrada>>arreglo[count] ; archivo_de_entrada.close(); showvalues(0,3,9); HERE IS THE PROBLEM showvalues2(5,8); sumtotal(total1,total2); system("pause"); return 0; } void showvalues(int a,int b,int v) { //muestra//////////////////////// cout<< "los num son "; for(count = a ;count <= b;count++) total1 = total1 + arreglo[count]; cout <<total1<<" "; cout <<endl; } void showvalues2(int c,int d) { ////////////////////////////// cout<< "los num 2 son "; for(count =5 ;count <=8;count++) total2 = total2 + arreglo[count]; cout <<total2<<" "; cout <<endl; } void sumtotal(int e,int f) { ///////////////////////////////// cout<<"la suma de t1 y t2 es "; total= total1 + total2; cout<<total; cout <<endl; }

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  • jquery xml exists

    - by mmcgrail
    I just want to use javescript /jquery to determine if and xml file exsists I don't need to process it I just need to know that its available or not. can seem to find simple check. thanks

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  • generate random opacity number using math random

    - by TechyDude
    I am trying to generate a random number for the css opacity. This is what I tried so far. CSS .test{ position : absolute; width : 15px; height : 15px; border-radius:15px; background-color : black; }? Script $(function() { for (var i = 0; i < 300; i++) { $("<div>", { class: "test", css: { opacity: randomOpacity } }).appendTo("body"); } function randomOpacity() { var opac = 0; opac = Math.random() < 1; console.log(opac); } randomize(); });? The Fiddle

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  • On IE cursor is comming always at start in textarea

    - by pravin
    I am dealing with textarea, and on click of this I am calling one replace function which will remove some specified string in textarea, this is the basic operation. Expected behavior after clicking on textarea 1) At first click : It should remove specified string from textarea Cursor should come at end of string 2) more than one click : - Cursor should come at where ever user clicks in text area Below is my replace function.... function replace(id,transFromDb) { newStr = $("#"+id).val(); var len = null; if(transFromDb == '') { newStr = newStr.replace(Lang.Message27,''); newStr = newStr.replace(Lang.Message28,''); } else { newStr = newStr.replace(Lang.Message28,''); newStr = newStr.replace(Lang.Message27,''); } /* change font weight as bold. */ $("#"+id).css({"fontWeight":"bold"}); $("#"+id).val(newStr); } Assume that Lang.Message is specified string. It's working above behavior with FF. Facing issue on IE, it always keep cursor position at first. Please provide any solution.... Thanks in Adavance Pravin

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  • How do I insert an input's value into a separate form?

    - by ryan
    I'm making a tool for my university that allows students to create a list of classes by doing the following: Searching by course title for their course via an autocomplete input field. Adding that course to a separate form that upon being submitted creates a course list. I am trying to link the autocomplete and the course list form with an 'add to course list' button that inserts a hidden input field into the course list form which can subsequently be submitted by a 'create course list' button. My question is this: How do I take the value of the autocomplete input and insert it into the course list form without using AJAX? So far I have something like the following: <%= text_field_with_auto_complete :course, :title, :size => 40 %> <%= link_to_function "Add to Course List" do |page| page.insert_html :top, :course_list, hidden_field(:courses, :course, {:value => "$('course_title').value"}) %> <% form_for(@course_list) do |f|%> <div id="course_list">Insert selected courses here.</div> <% end %>

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  • DateJS parsing mystery

    - by Herb Caudill
    I'm using DateJS to parse user-inputted dates, and getting some strange results. Date.parse("15 Jan 2010") returns Fri Jan 15 00:00:00 EST 2010 (right) Date.parse("15-Apr-2010") returns Thu Apr 15 00:00:00 EDT 2010 (right) Date.parse("15 Apr 2010") returns Thu Apr 1 00:00:00 EDT 2010 (wrong) As far as I can tell, the d MMM yyyy input format works fine for every month except April and August; in those two cases, it returns the first of the month no matter what day is entered. Is this a bug, or is there a logical explanation I'm missing?

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  • Regular expression help needed.

    - by Subrat
    Hi, Can anybody help me writting a regular expression to replace these characters with a empty string. Character list is given below. public static char[] delimiters = { ' ', '\r', '\n', '?', '!', ';', '.', ',', '`', ':', '(', ')', '{', '}', '[', ']', '|', '\'', '\\', '~', '=', '@', '>', '<', '&', '%', '-', '/', '#' }; Thanks. Subrat.

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