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  • JQuery - remove the chars not matching regEx

    - by JQueryBeginner
    Hi All, I am trying to use jquery for validating forms. This is the pattern that is allowed in a text box for a user. var pattern = /^[a-zA-Z0-9!#$&%*+,-./: ;=?@_]/g; If the user types anything else other than this then that has to be replaced with a "". $(document).ready(function() { $('#iBox').blur(function() { var jVal = $('#iBox').val(); if(jVal.match(pattern)) { alert("Valid"); } else { alert("New "+jVal.replace(!(pattern),"")); } }); }); }); But the replace function does not work this way.

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  • Detectig by how much user has scrolled

    - by Sean
    I have an image pop-up ability on my website (see this screenshot), in order to show users the full resolution picture when they click on a smaller version on the page. This is the current CSS that positions it: div#enlargedImgWrapper { position: absolute; top: 30px; left: 55px; z-index: 999; } The problem now is that if I click on an image further down the page, the window still appears in the top left corner of the page, where I can't see it until I scroll back up. I need it to appear relative to the window, whatever its current position relative to the document is. Note: I don't want to use position: fixed; as some images might be taller than the screen, so I want users to be able to scroll along the image as well. My idea was to use JS to change the top value: var scrollValue = ???; document.getElementById('enlargedImgWrapper').style.top = scrollValue+30 + 'px'; How can I detect by how much the user has scrolled down the page (var scrollValue)? Or is there a 'better' way to do this? Thanks!

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  • jQuery offset combined with jQuery UI doesn't update on drag

    - by Constructor
    I need to get the offset of the element that is being dragged and I use: $(function(){ $(".draggable").draggable({ stop: function(){ var offset = $("#boxone").offset(); alert(offset.left); } }); }); the element is positioned absolute and has a CSS of: left:100px; that is the value I get on the alert when I drag the element (even multiple times). What I want is to get it to alert the current offset (if I drag in 200px to the right it should say 300)

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  • Problem accessing private variables in jQuery like chainable design pattern

    - by novogeek
    Hi folks, I'm trying to create my custom toolbox which imitates jQuery's design pattern. Basically, the idea is somewhat derived from this post: http://stackoverflow.com/questions/2061501/jquery-plugin-design-pattern-common-practice-for-dealing-with-private-function (Check the answer given by "David"). So here is my toolbox function: (function(window){ var mySpace=function(){ return new PrivateSpace(); } var PrivateSpace=function(){ var testCache={}; }; PrivateSpace.prototype={ init:function(){ console.log('init this:', this); return this; }, ajax:function(){ console.log('make ajax calls here'); return this; }, cache:function(key,selector){ console.log('cache selectors here'); testCache[key]=selector; console.log('cached selector: ',testCache); return this; } } window.hmis=window.m$=mySpace(); })(window) Now, if I execute this function like: console.log(m$.cache('firstname','#FirstNameTextbox')); I get an error 'testCache' is not defined. I'm not able to access the variable "testCache" inside my cache function of the prototype. How should I access it? Basically, what I want to do is, I want to cache all my jQuery selectors into an object and use this object in the future.

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  • Expanding videoplayer like CNN-website, prerably jQuery-based

    - by Nils
    I'm wondering if anyone knows of a script/plugin, jquery-based or otherwise, which could be used to achive the effect that can be found on CNN.com. I'm talking about the videos that are representet by a small thumbnail, that when clicked expands in to the text and plays. I'm by no means a JS-guru, and me and flash isn't the bestest of friends, but I'm not completly cluess. Essentially, what im looking for is a way to click a thumbnail, expand a swf, and stop it if i contract it again. something like that. ANY ideas, tips or insights are welcome!

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  • Local Variables take 7x longer to access than global variables?

    - by ItzWarty
    I was trying to benchmark the gain/loss of "caching" math.floor, in hopes that I could make calls faster. Here was the test: <html> <head> <script> window.onload = function() { var startTime = new Date().getTime(); var k = 0; for(var i = 0; i < 1000000; i++) k += Math.floor(9.99); var mathFloorTime = new Date().getTime() - startTime; startTime = new Date().getTime(); window.mfloor = Math.floor; k = 0; for(var i = 0; i < 1000000; i++) k += window.mfloor(9.99); var globalFloorTime = new Date().getTime() - startTime; startTime = new Date().getTime(); var mfloor = Math.floor; k = 0; for(var i = 0; i < 1000000; i++) k += mfloor(9.99); var localFloorTime = new Date().getTime() - startTime; document.getElementById("MathResult").innerHTML = mathFloorTime; document.getElementById("globalResult").innerHTML = globalFloorTime; document.getElementById("localResult").innerHTML = localFloorTime; }; </script> </head> <body> Math.floor: <span id="MathResult"></span>ms <br /> var mathfloor: <span id="globalResult"></span>ms <br /> window.mathfloor: <span id="localResult"></span>ms <br /> </body> </html> My results from the test: [Chromium 5.0.308.0]: Math.floor: 49ms var mathfloor: 271ms window.mathfloor: 40ms [IE 8.0.6001.18702] Math.floor: 703ms var mathfloor: 9890ms [LOL!] window.mathfloor: 375ms [Firefox [Minefield] 3.7a4pre] Math.floor: 42ms var mathfloor: 2257ms window.mathfloor: 60ms [Safari 4.0.4[531.21.10] ] Math.floor: 92ms var mathfloor: 289ms window.mathfloor: 90ms [Opera 10.10 build 1893] Math.floor: 500ms var mathfloor: 843ms window.mathfloor: 360ms [Konqueror 4.3.90 [KDE 4.3.90 [KDE 4.4 RC1]]] Math.floor: 453ms var mathfloor: 563ms window.mathfloor: 312ms The variance is random, of course, but for the most part In all cases [this shows time taken]: [takes longer] mathfloor Math.floor window.mathfloor [is faster] Why is this? In my projects i've been using var mfloor = Math.floor, and according to my not-so-amazing benchmarks, my efforts to "optimize" actually slowed down the script by ALOT... Is there any other way to make my code more "efficient"...? I'm at the stage where i basically need to optimize, so no, this isn't "premature optimization"...

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  • MVC way of handling data input

    - by korki
    I have a data input module where I add the information of my product and its sub information like: product basic info product price info product price details price info and price details are related to product and are lists In my web forms approach I would store my main product object on the view state and I would populate it's pricing info and details while doing ajax postbacks. This way I can create a compact module that is very user friendly in terms of defining a lot of data from one place without the need to enter these data from seperate modules. And when I am done I would do one product.save() and that would persist all the data to the respective tables on db. Now I am building similar app on .net mvc framework and pondering on what would be the good way of handling this on mvc. I don't resonate towards storing all this on client side till I click save. And saving to the db after each action makes me remember the days I was coding on asp. Will appreciate your inputs on ways to approach this on mvc framework

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  • Google Maps API v3 show local businesses/points of interest

    - by julio
    I know at some point I'd come across a Google service built into their API that would provide local information as markers on the viewport (schools, hospitals, etc.)-- I believe this was a simple control that could be added just like the normal map controls, to allow users to turn it on or off with a checkbox or button. I can't seem to find this feature documented anywhere in the v3.0 API docs. Can anyone provide some information on this, or let me know if it was deprecated? Thanks

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  • auto reload: how it works?

    - by Syom
    i need to change something in my site, if some fields changed in database, but without reloading the page! but i have no idea how i can do it. could you give me an idea? thanks

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  • Jquery Form Validation Plugin Not Working

    - by nayanjyoti hazarika
    I try to validate a simple Form but the Jquery Validation Plugin not working when I use only Button not The Submit Button. I can not use the Submit button there Because If I use submit Button After Submitting the form It take the Action and goes to Default page while my current form is comes from Ajax. I am very new to Jquery. Please Help its Urgent... I am giving the files here. index.html <html> <head> <script src="jquery.js"> <script="jquery-validate-min.js"> <script="validation.js> </head> <body> <form id="contact_form"> <table> <tr><th>Name</th><td><input name="name" /></td></tr> <tr><th>E Mail</th><td><input name="email" /></td></tr> <tr><th><input type="button" name ="submit" id="form_sub" onclick="save"></th><td><input name="email" /></td></tr> </table> </form> </body> </html> Now the validation.js file function save(){ $("#form_sub").click(function(){ $("#contact_form").validate({ 'rules':{ 'name':{ 'required':true, 'minlength':5 }, 'email':{ 'required':true, 'email':true } } }) } Everything works fine when we use input type="submit"... But it not working when we use input type="button" Any Idea how can Fix this? I am new to Jquery ... Please Help

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  • PopUp Blocker code detection not working.

    - by httpftp21
    I have turned on PopUp blocker in FF and Chrome. I have a piece of code to check PopUp is working as: [Code] function checkPopUp() { var myTest = window.open("about:blank","","directories=no,height=1,width=1,menubar=no,resizable=no,scrollbars=no,status=no,titlebar=no,top=0,location=no"); var popUpsBlocked = ''; if (!myTest) { popUpsBlocked = true; } else { popUpsBlocked = false; } return popUpsBlocked; } [/Code] its working fine "onload" of the page. But when i am using it with hyper link onclick, its not working a popup is getting opened. [code] Test [/code]

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  • 'Best' way to pull data relative to a div?

    - by acidzombie24
    This answer suggested i should put my data in JS instead of a textarea. Thinking about it i could have scripts and do something like myarray[i]="data" where i is the index of my for loop. However when i click a div how do i find out what i is? I have used var data = $(this).parent('.parent').find('.valuestr').eq(0).val(); which is extremely simple. Should i use a script or should i continue to do it with a textarea? if i should use a script 1) Whats the easiest way to find i and 2) Is it bad pratice to have dozens or hundreds of <script> in my html? or i can go through the loop twice but i still dont know the easiest way to find i. I would have to store it somewhere or go through multiple tags and count them.

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  • keep params and add another from a form

    - by doubtful
    Hey Guys, I have the following 3 urls: http://www.test.com?a=1 http://www.test.com?a=1&b=3 http://www.test.com?a=1&b=2&c=99 Now in a form i have a drop down menu like so: <select name="b"> <option value="1">1</option> ... </select> Now i want to either add that param to the list of existing params or edit the param if its already there, then refresh the page. Any ideas? Thanks

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  • How does dzone.com maintain state of the div?

    - by CShipley
    When you scroll down to the bottom of http://www.dzone.com/links/ it automatically loads more links. However, when you navigate away, then hit the back button, the contents of the modified div stay there. How do they get the browser to go back to a dynamically generated div?

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  • Get content from HTML element in Rails

    - by Ignace
    Hey, I'm looking for a way to get the content of my div in my Rails view. I would like the literal HTML content, so only HTML and no Rails I thought inner_html would work, but I get a RJS exception (TypeError: $("content").innerHtml is not a function) Does anyone know how I can get the content? Thanks!

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  • how to make a part of the textbox as readonly

    - by vakas
    i have a tagtextbox on my page when a user selects a category that category name goes to tagtextbox now i want that this category name user cant change but he can append some more tags means first tag becomes readonly and further he can add too in same text box

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  • Alternate colors on click with jQuery

    - by Jace Cotton
    I'm sure there is a simple solution to this, and I'm sure this is a duplicate question, though I have been unable to solve my solution particularly because I don't really know how to phrase it in order to search for other questions/solutions, so I'm coming here hoping for some help. Basically, I have spans with classes that assigns a background-color property, and inside those spans are words. I have three of these spans, and each time a user clicks on a span I want the class to change (thus changing the background color and inner text). HTML: <span class="alternate"> <span class="blue showing">Lorem</span> <span class="green">Ipsum</span> <span class="red">Dolor</span> </span> CSS: .alternate span { display : none } .alternate .showing { display : inline } .blue { background : blue } .green { background : green } .red { background : red } jQuery: $(".alternate span").each(function() { $(this).on("click", function() { $(this).removeClass("showing"); $(this).next().addClass("showing"); }); }); This solution works great using $.next until I get to the third click, whereafter .showing is removed, and is not added since there are no more $.next options. How do I, after getting to the last-child, add .showing to the first-child and then start over? I have tried various options including if($(".alternate span:last-child").hasClass("showing")) { etc. etc. }, and I attempted to use an array and for loop though I failed to make it work. Newb question, I know, but I can't seem to solve this so as a last resort I'm coming here.

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  • Select-all checkboxes in a FORM_TAG

    - by Horace Ho
    In a form_tag, there is a list of 10 to 15 checkboxes: <%= check_box_tag 'vehicles[]', car.id %> How can I select-all (put a tick in every single) checkboxes by RJS? Thanks EDIT: Sorry I didn't make my question clear. What I meant to ask is how to add a "Select/Un-select All" link in the same page to toggle the checkboxes.

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  • How to make a page print to printer just once

    - by menislici
    I have a basic html page generated through php and it prints to a printer after a link click using Ben Nadel's print plugin. However, I don't want the user to print the page again. I tried setting the 'print' link to a negative z-index using jquery after it's being clicked, but the user can refresh the page and reuse the link so it would print again. I also know that I can somehow disable the refresh feature, by modifying what F5 does, but that would't save the day since the user can refresh the page through the url bar, and I can't remove/hide, it as much as I know. It also runs on localhost so the user client and server are on the same side. Even the browser doesn't matter since I could use the one that fits this case.

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  • jeditable accidentally triggering on Draggable on nested items

    - by ripper234
    I'm using jquery-ui's draggable for drag-and-drop, and jeditable for inline editing. When I drag and drop an element that's also editable, right after it's dropped jeditable kicks in and pops into 'edit mode'. How can I disable this behavior? Edit - the problem happens because of netsting - see this example. I also added draggable to the mix to make the example more realistic (the actual real problem is in this site that I'm working on) Note - even though this question has an accepted answer because of the bounty rules, the problem is still not resolved for me.

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  • In Jeditable, how do I make it so that when I click the div to edit, the text box content has initial value that is processed?

    - by TIMEX
    When the user clicks on the div, jeditable will make a text box. However, I want the initial text to be done with function stripTags(), instead of what's on the page. The reason is that I'm using some URL techniques to turn plain text links into URLs. When the user clicks on the div, jeditable is turning them into <a href=>..</a> Is there a "beforeSubmit" option in jeditable? http://www.appelsiini.net/projects/jeditable

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  • Using Jquery to check if a URL is valid

    - by user102533
    A long running background process creates a text file to indicate the completion of the process. From the frontend, I'd need to check every few seconds if the text file has been created or not. I am doing this check from However the file is created in http://DomainB.com/Mytext.txt Can someone help me write a jquery script that checks for a file across domain? PS: Currently, I am doing a ajax postback that executes a WebMethod in ASP.NET that creates HttpWebRequest. This works functionally, but I have major performance problems. So, I need a light weight way of finding if a URL is valid or not.

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