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  • Sharing variable within different javascript file at client side

    - by Aman
    I was actually going through this link. which explains how we can share global variable across multiple js. but the point is what need to be done if I am getting some variable into one js and need to pass to another one mentioned in same document after the 1st one. approach which followed was: Script 1 <script type="text/javascript" src="js/client.js"></script> body added some hidden input with id myHiddenId, where values are set using client.js Script 2 <script type="text/javascript" src="js/anotherJS.js"></script> inside script 2 I am simply using $("#myHiddenId").val(); and using for my purpose. I want to know whether I am following correct approach, because that hidden field may have some data which client should not get aware of. is there any other way through which I can pass the variable values across the js files ? Since I am at beginner level hence digging up some resources/books but still no luck.

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  • Unable to decode hex values in javascript tooltip

    - by staudk27
    Hi all, I have quite the process that we go through in order to display some e-mail communications in our application. Trying to keep it as general as possible... -We make a request to a service via XML -Get the XML reply string, send the string to a method to encode any invalid characters as follows: public static String convertUTF8(String value) { char[] chars = value.toCharArray(); StringBuffer retVal = new StringBuffer(chars.length); for (int i = 0; i < chars.length; i++) { char c = chars[i]; int chVal = (int)c; if (chVal > Byte.MAX_VALUE) { retVal.append("&#x").append(Integer.toHexString(chVal)).append(";"); } else { retVal.append(c); } } return retVal.toString(); } We then send that result of a string to another method to remove any other invalid characters: public static String removeInvalidCharacters(String inString) { if (inString == null){ return null; } StringBuffer newString = new StringBuffer(); char ch; char c[] = inString.toCharArray(); for (int i = 0; i < c.length; i++) { ch = c[i]; // remove any characters outside the valid UTF-8 range as well as all control characters // except tabs and new lines if ((ch < 0x00FD && ch > 0x001F) || ch == '\t' || ch == '\n' || ch == '\r') { newString.append(ch); } } return newString.toString(); } This string is then "unmarshal'ed" via the SaxParser The object is then sent back to our Display action which generated the response to the calling jsp/javascript to create the page. The issue is some text can contain characters which can't be processed correctly. The following is eventually rendered on the JSP just fine: <PrvwCommTxt>This is a new test. Have a*&amp;#xc7;&amp;#xb4;)&amp;#xa1;.&amp;#xf1;&amp;#xc7;&amp;#xa1;.&amp;#xf1;*&amp;#xc7;&amp;#xb4;)...</PrvwCommTxt> Which shows up as "This is a new test. Have a*Ç´)¡.ñÇ¡." in the browser. -The following shows up in a tooltip while hovering over the above text: <CommDetails>This is a new test. Have a*Ç´)¡.ñÇ¡.ñ*Ç´)¡.ñ*´)(¡.ñÇ(¡.ñÇ* Wonderful Day!</CommDetails> This then shows up incorrectly when rendered in the tooltip javascript with all the HEX values and not being rendered correctly. Any suggestions on how to make the unknown characters show correctly in javascript?

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  • Doing some stuff right before the user exits the page

    - by Mike
    I have seen some questions here regarding what I want to achieve and have based what I have so far on those answer. But there is a slight misbehavior that is still irritating me. What I have is sort of a recovery feature. Whenever you are typing text, the client sends a sync request to the server every 45 seconds. It does 2 things. First, it extends the lease the client has on the record (only one person may edit at one time) for another 60 seconds. Second, it sends the text typed so far to the server in case the server crashes, internet connection fails, etc. In that case, the next time the user enters our application, the user is notified that something has gone wrong and that some text was recovered. Think of Microsoft or OpenOffice recovery whenever they crash! Of course, if the user leaves the page willingly, the user does not need to be notified and as a result, the recovery is deleted. I do that final request via a beforeunload event. Everything went fine until I was asked to make a final adjustment... The same behavior you have here at stack overflow when you exit the editor... a confirm dialogue. This works so far, BUT, the confirm dialogue is shown twice. Here is the code. The event if (local.sync.autosave_textelement) { window.onbeforeunload = exitConfirm; } The function function exitConfirm() { var local = Core; if (confirm('blub?')) { local.sync.autosave_destroy = true; sync(false); return true; } else { return false; } }; Some problem irrelevant clarifications: Core is a global Object that contains a lot of variables that are used everywhere. sync makes an ajax request. The values are based on the values that the Core.sync object contains. The parameter determines if the call should be async (default) or sync. Edit 1 I did try to separate both things (recovery deletion and user confirmation that is) into beforeunload and unload. The problem there was that unload is a bit too late. The user gets informed that there is a recovery even though it is scheduled to be deleted. If you refresh the page 1 second later, the dialogue disappears as the file was deleted by then.

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  • javascript object access performance

    - by youdontmeanmuch
    In Javascript, when your getting a property of an object, is there a performance penalty to getting the whole object vs only getting a property of that object? Also Keep in mind I'm not talking about DOM access these are pure simple Javascript objects. For example: Is there some kind of performance difference between the following code: Assumed to be faster but not sure: var length = some.object[key].length; if(length === condition){ // Do something that doesnt need anything inside of some.object[key] } else{ var object = some.object[key]; // Do something that requires stuff inside of some.object[key] } I think this would be slower but not sure if it matters. var object = some.object[key]; if(object.length === condition){ // Do something that doesnt need anything inside of some.object[key] } else{ // Do something that requires stuff inside of some.object[key] }

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  • View code inside Javascript file on Rails

    - by SpyrosP
    Hello, previously i had javascript code right in the top of my view and it would work. Then, i learned that you can include the js file using yield and i did just that. I had rails view code inside my javascript code like : $( "#exp-progressbar" ).progressbar({ value: <%= ((@quest.end_time - Time.now).to_i * 100 ) / (@quest.duration * 60) %> }); Now, after i do it with yield, i get an error when i do that in the separate js file. How can i do it now ?

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  • JQuery: how to use "delegate" instead of "live"?

    - by JacobD
    I've read countless articles how using the JQuery delegate is much more efficient than using the "live" event. As such, I'm having trouble converting my existing Live code to using Delegate. $("#tabs li:eq(0)").live('click',function(){ //...code }); $('#A > div.listing, #B > div.listing, #C > div.listing').live('mouseover',function(){ // ...code }); When I replace the previous code with what I assume is more efficient delegate code, my page doesn't load. $("#tabs li:eq(0)").delegate('click',function(){ //...code }); $('#A > div.listing, #B > div.listing, #C > div.listing').delegate('mouseover',function(){ // ...code }); Any idea why my delegate code doesn't work? Also, any suggestions on how to make this more efficient? UPDATE: The think part of the problem is that, both "#tabs" and "#A, #B, #C" are't present on the web page at page load. Those attributes are dynamically inserted onto the page with an AJAX call. As such, does that mean I have to use live over delegate?

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  • JavaScript and ASP.NET - Cookies with Key / Value Pairs

    - by user208662
    Hello, This question mixes client-side scripting with server-side parsing. In some cases, I'm writing a cookie to the user's browser using the document.cookie property. In other cases, I'm writing the same cookie to the user's browser through the ASP.NET Response object. When I'm writing the HttpCookie on the server-side, I am using the Values collection (http://msdn.microsoft.com/en-US/library/system.web.httpcookie.values%28v=VS.80%29.aspx) to store key/value pairs in the cookie. I would also like to be able to write key-value pairs to the cookie through JavaScript. How do I create cookies with Key/Value pairs via JavaScript that ASP.NET can parse? Thank you!

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  • about onmouseout event.please help.

    - by lazyanno
    as follow codes: <div id="outerBox" style="border:1px solid red;width:300;height:300" onmouseout="alert('out')"> <div id="innerBox" style="border:1px solid blue;width:50;height:50">inner</div> </div> why when i move mouse on the "innerBox", it was trigger alert('out') ? i want mouse out "outerBox" trigger alert('out') only, mouse on "innerBox" don't trigger alert. hot to do this? thanks all :)

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  • How to set the position .

    - by shamim
    http://www.kampyle.com/ in this url when you scroll one picture always moves. i want to know this process name.how can they do it. after click this picture it's vanish and never appear even refresh the page.How they get information i click this picture .it will be helpful for me if some one give me the solution .

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  • Rails 3: How do I call a javascript function from a js.erb file

    - by user321775
    Now that I've upgraded to Rails 3, I'm trying to figure out the proper way to separate and reuse pieces of javascript. Here's the scenario I'm dealing with: I have a page with two areas: one with elements that should be draggable, the other with droppables. When the page loads I use jQuery to setup the draggables and droppables. Currently I have the script in the head portion of application.html.erb, which I'm sure is not the right solution but at least works. When I press a button on the page, an ajax call is made to my controller that replaces the draggables with a new set of elements that should also be draggable. I have a js.erb file that renders a partial in the correct location. After rendering I need to make the new elements draggable, so I'd like to reuse the code that currently lives in application.html.erb, but I haven't found the right way to do it. I can only make the new elements draggable by pasting the code directly into my js.erb file (yuck). What I'd like to have: - a javascript file that contains the functions prepdraggables() and prepdroppables() - a way to call either function from application.html.erb or from a js.erb file I've tried using :content_for to store and reuse the code, but can't seem to get it working correctly. What I currently have in the head section of application.html.erb <% content_for :drag_drop_prep do %> <script type="text/javascript" charset="utf-8"> $(document).ready(function () { // declare all DOM elements with class draggable to be draggable $( ".draggable" ).draggable( { revert : 'invalid' }); // declare all DOM elements with class legal to be droppable $(".legal").droppable({ hoverClass : 'legal_hover', drop : function(event, ui) { var c = new Object(); c['die'] = ui.draggable.attr("id"); c['cell'] = $(this).attr("id"); c['authenticity_token'] = encodeURIComponent(window._token); $.ajax({ type: "POST", url: "/placeDie", data: c, timeout: 5000 }); }}); }); </script> <% end %> undo.js.erb $("#board").html("<%= escape_javascript(render :partial => 'shared/board', :locals => { :playable => true, :restartable => !session[:challenge]}) %>") // This is where I want to prepare draggables. <%= javascript_include_tag "customdragdrop.js" %> // assuming this file had the draggables code from above in a prepdraggables() function prepdraggables();

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  • How to Detect an Event Coming from the Firefox History Dropdown Box

    - by banterCZ
    How to detect an event coming from the Firefox history dropdown box? I need to distinguish between the enter key simply pressed on input field or on item from his native history dropdown box. The reason is that I would like to call custom submit button (not first one, which is default) on the enter key pressed on any input field. But right now, the enter key pressed on history dropdown box unfortunately call submit as well.

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  • how to add markup to text using JavaScript regex

    - by Richard
    I need to add markup to some text using JavaScript regular expressions. In Python I could do this with: >>> import re >>> re.sub('(banana|apple)', r'<b>{\1}</b>', 'I have 1 banana and 2 apples!') 'I have 1 <b>{banana}</b> and 2 <b>{apple}</b>s!' What is the equivalent in JavaScript? string.replace(regex, newstring) seems to only take a raw string for replacing.

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  • Possible to bind an event listener to a (hypothetical) onChangeInnerHTML event?

    - by DustMason
    In my app, I have an OL tag whose contents are changed by various other dynamic events. Is there some way to put a listener on that OL so that I can execute a function whenever its contents are altered in any way? In this example I need to update a count of items in the list which appears in another spot in the interface. I am using jQuery if that helps. The contents of the OL are being changed with OL.append() and LI.remove(), in case those methods have some special events that I don't know about Thanks!

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  • jQuery: How to stop propagation of a bound function not the entire event?

    - by Dale
    I have a click function bound to many elements. It is possible that sometimes these elements may sit within one another. So, the click event is bound to a child and also bound to its parent. The method is specific to the element clicked. Naturally, because of event bubbling, the child's event is fired first, and then the parents. I cannot have them both called at the same time because the parents event overwrites the event of the child. So I could use event.stopPropagation() so only the first element clicked receives the event. The problem is that there are other click events also attached to the element, for example, I am using jQuery's draggable on these elements. If I stop the propagation of the click event, then draggable doesn't work, and the following click events are not called. So my question is: Is there a way to stop the event bubbling of the method the event will call and not the entire event?

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  • Passing javascript form variables into jQuery function not working

    - by Chase
    I am trying to pass some JavaScript variables that I have assigned to form variables into a query string used by a jQuery plug in called fancybox. If I hard code in the string that I want lightbox works great, however I need it to pass some form values in there to make it work as desire. <script type="text/javascript"> $(document).ready(function(){ var item = document.itemFinder.item; var zip = document.itemFinder.zip; var radius = document.itemFinder.radius; var dataString = "item=" + item + "&zip=" + zip + "&radius=" + radius; $("#various3").fancybox({ ajax : { type : "POST", data : dataString}, 'scrolling' : 'auto', 'overlayOpacity' : '0' } ); }); </script> What am I doing wrong?

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  • javascript-aware html parser for Python ~

    - by znetor
    <html> <head> <script type="text/javascript"> document.write('<a href="http://www.google.com">f*** js</a>'); document.write("f*** js!"); </script> </head> <body> <script type="text/javascript"> document.write('<a href="http://www.google.com">f*** js</a>'); document.write("f*** js!"); </script> <div><a href="http://www.google.com">f*** js</a></div> </body> </html> I want use xpath to catch all lable object in the html page above... In [1]: import lxml.html as H In [2]: f = open("test.html","r") In [3]: c = f.read() In [4]: doc = H.document_fromstring(c) In [5]: doc.xpath('//a') Out[5]: [<Element a at a01d17c>] In [6]: a = doc.xpath('//a')[0] In [7]: a.getparent() Out[7]: <Element div at a01d41c> I only get one don't generate by js~ but firefox xpath checker can find all lable!? http://i.imgur.com/0hSug.png how to do that??? thx~! <html> <head> </head> <body> <script language="javascript"> function over(){ a.innerHTML="mouse me" } function out(){ a.innerHTML="<a href='http://www.google.com'>google</a>" } </script> <body><li id="a"onmouseover="over()" onmouseout="out()">mouse me</li> </body> </html>

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  • HtmlUnit doesn't load externally referenced javascript

    - by nici
    I have run into a problem while trying to test a web application with HtmlUnit. Please bear in mind that I haven't used HtmlUnit very long so I might be missing something trivial. For some reason externally referenced javascripts aren't being loaded. When I print the page as xml all i get is this: <script language="javascript" src="urltofile.js"> </script> As you can see the script tag is empty when it should contain the javascript. What am I missing? I have googled for a solution all morning but haven't found any relevant information. Any help would be greatly appreciated!

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  • Javascript Regular Expression help

    - by user270399
    Hello! I have got the following regular expression working just fine in Rad Software Regular Expression designer. param\s+name\s*=\s*"movie"\s+value=\s*"(?<target>.*?)" And now i am wondering, how to get this to work in javascript. It keeps on complaininge about the "target" part. I am trying to validate and get the url from the youtube embed code. <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/ueZP6ifzqMY&hl=sv_SE&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/ueZP6ifzqMY&hl=sv_SE&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object> How the heck do i get this regex to work with my javascript? :)

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  • MooTools Problem in IE with Request

    - by trobrock
    I have this class method in a mootools class: getData : function(){ var r = new Request.JSON({ url : this.container.getAttribute('data-url'), method : 'post', onSuccess : function(j){ this.cards = j; this.prepareQuiz(); }.bind(this) }).send(); }, In any browser aside from IE this works fine, but in IE I get a this.cards is not defined in a method that occurs after the this.prepareQuiz method does it's stuff. I narrowed the problem to this section by adding an if ($defined(this.cards)) before the this.prepareQuiz call and if I just keep refreshing the page 1 out of every 5 or so times it will work. So the this.cards variable is not being set some of the time for some reason. Why would this happen?

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  • disable javascript popup on refreshing page

    - by vatismarty
    Hi all, I have written code like this to throw a pop up when my website is closed. But this throws the pop up even if i refresh my page. Please help me to throw popup only when i close the browser of that website. (disable popup on refreshing page) <body onunload="javascript: exitpop()"> <script type="text/javascript"> function exitpop() { my_window= window.open ("","mywindow1","status=1,width=600,height=400"); my_window.document.write('<h1>My Team</h1><p>Thank you</p><p>If you accidentally closed website click <a href="http://www.google.com">here</a> to go back to our website</p>'); }.

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