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  • jQuery programmatically removing validation highlighting

    - by Sam Carleton
    The form has two check boxes (cbDeclined & cbIsOOfFac), two text fields and a drop down (txtHeight, txtWeight, ddlDevice). If either check box is checked, then the other controls are disabled and the rules for the other do no apply. Here are the current rules: $('form').validate({ highlight: function (element, errorClass) { $(element).addClass("invalidElem"); }, unhighlight: function (element, errorClass) { $(element).removeClass("invalidElem"); }, errorPlacement: function (error, element) { var parent = element.parent(); parent.append(error); }, errorElement: "div", errorClass: "errorMsg" }); function HeightWeightCtrlsEnabled() { return !cbDeclined.is(':checked') && !cbIsOOfFac.is(':checked'); } txtHeight.rules("add", { required: function (element) { return HeightWeightCtrlsEnabled(); }, maxlength: 3, min: 1, digits: true }); txtWeight.rules("add", { required: function (element) { return HeightWeightCtrlsEnabled(); }, maxlength: 4, min: 1, digits: true }); ddlDevice.rules("add", { required: function (element) { return HeightWeightCtrlsEnabled(); } }); function UpdateTextBoxes() { var disableCtrls = !HeightWeightCtrlsEnabled(); txtHeight.prop('disabled', disableCtrls); txtWeight.prop('disabled', disableCtrls); ddlDevice.prop('disabled', disableCtrls); if (disableCtrls) { txtHeight.val(''); txtWeight.val(''); ddlDevice.val(''); } } cbDeclined.click(function () { if (cbDeclined.is(':checked')) cbIsOOfFac.attr('checked', false); UpdateTextBoxes(); }); cbIsOOfFac.click(function () { if (cbIsOOfFac.is(':checked')) cbDeclined.attr('checked', false); UpdateTextBoxes(); }); The problem comes in when: The user enters something into txtWeight, clicks the submit to get both ddlDevice & txtHeight to highlight because they are required, then... The user clicks on either cbDeclined & cbIsOOfFac. The highlight is NOT going away. I am trying to figure out how to get the highlighting around the height and drop down to go away. I tried to create a fully working jsFiddler, but I cannot get anything to work, though everything looks correct. here is the link (I cannot post links, so I expanded it a bit) jsfiddle dot net/scarleton/9hDZQ/12/ If you remove the last /12/, you will see my first version that is a cut/paste from the real thing. Per a suggestion I tried adding $('form').valid(); a number of places. When I added it to the end of the UpdateTextBoxes() function, they started out highlighted, not what I want. When I added it after the click() event of either of the radio button, the text would go away, but the actual controls stayed highlighted. It looks like the function on the required property of the rule is not fully working, maybe. What is really interesting is this: When I enter a height, click , then weight and device are highlighted and have the error message under them. When I click on one of the radio buttons, the text goes away, but the highlight does not. But... The height is NOT highlighted, it stays normal.

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  • How do I enable in-place tablet pc input panel for non tablet PCs?

    - by yngvedh
    Hi all, Is it possible to enable the in-place tablet PC input panel on a non-tablet PC? I have checked the "For tablet pen input, show the Input Panel icon next to the text entry area when possible" checkbox in the options of the Input Panel. Does this not work because pen input is something different than mouse input? I do have a touch screen, but it just emulates a mouse (moving the cursor, pressing the left mouse button and such). I can get the Input Panel to show manually by starting tabtip.exe and then event the ink works, but I cannot get it to show (itself or it's in-place icon) when I activate text input controls. Does anyone know what's up?

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  • Converting HTML to plain text in PHP for e-mail

    - by jstayton
    I use TinyMCE to allow minimal formatting of text within my site. From the HTML that's produced, I'd like to convert it to plain text for e-mail. I've been using a class called html2text, but it's really lacking in UTF-8 support, among other things. I do, however, like that it maps certain HTML tags to plain text formatting — like putting underscores around text that previously had <i> tags in the HTML. Does anyone use a similar approach to converting HTML to plain text in PHP? And if so: Do you recommend any third-party classes that I can use? Or how do you best tackle this issue? Thanks!

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  • Applying a Dojo Toolkit (Dijit) theme to ASP.NET pages.

    - by mcoolbeth
    In the code below, I am trying to apply a Dijit theme to the controls in my .aspx page. However, the controls persist in their normal, unthemed appearance. Anybody know why? Master Page: <%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Main.master.cs" Inherits="WebJournalEntryClient.Main" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>My Web Application</title> <link rel="stylesheet" href="dojoroot/dijit/themes/tundra/tundra.css" /> <script type="text/javascript" src="dojoroot/dojo/dojo.js"/> <script type="text/javascript"> dojo.require("dijit.form.Button"); dojo.require("dijit.form.TextBox"); dojo.require("dijit.form.ComboBox"); </script> </head> <body class = "tundra"> <form id="form1" runat="server"> <div> <div> This is potentially space for a header bar. </div> <table> <tr> <td> Maybe <br /> a <br /> Side <br /> bar. </td> <td> <asp:ContentPlaceHolder ID="CenterPlaceHolder" runat="server"/> </td> </tr> </table> <div> This is potentially space for a footer bar. </div> </div> </form> </body> </html> Content Page: <%@ Page Title="" Language="C#" MasterPageFile="~/Main.Master" AutoEventWireup="true" CodeBehind="LogIn.aspx.cs" Inherits="WebJournalEntryClient.LogIn" %> <asp:Content ID="Content" ContentPlaceHolderID="CenterPlaceHolder" runat="server"> <div> User ID: <asp:TextBox ID = "UserName" dojoType="dijit.form.TextBox" runat="server" /><br /> Password: <asp:TextBox ID = "PassWord" dojoType="dijit.form.TextBox" runat="server" /><br /> <asp:Button ID="LogInButton" Text="Log In" dojoType="dijit.form.Button" runat="server" /> </div> </asp:Content>

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  • Google App Engine - Blob Store Service with a Dispatcher Servlet

    - by Rahul
    I have a central dispatcher servlet that has a servlet mapping of : <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> When i try to use the blob store service's createUploadUrl("/uploadComplete") it maps to a URL for e.g *'/_ah/upload/agp0d2VldG15cGljchsLEhVfX0Jsb2JVcGxvYWRTZXNzaW9uX18YEgw'*. Before the Blob store service can handle the upload and redirect to /uploadComplete; my dispatcher servlet gets called and i am therefore not being able to upload anything. Is there a servlet/ filter that i can map to /_ah/upload/* in my web.xml ? How do i avoid the dispatcher servlet from getting called before the Blob store service can do its thing?

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  • Overriding Object.Equals() instance method in C#; now Code Analysis / FxCop warning CA2218: "should

    - by Chris W. Rea
    I've got a complex class in my C# project on which I want to be able to do equality tests. It is not a trivial class; it contains a variety of scalar properties as well as references to other objects and collections (e.g. IDictionary). For what it's worth, my class is sealed. To enable a performance optimization elsewhere in my system (an optimization that avoids a costly network round-trip), I need to be able to compare instances of these objects to each other for equality – other than the built-in reference equality – and so I'm overriding the Object.Equals() instance method. However, now that I've done that, Visual Studio 2008's Code Analysis a.k.a. FxCop, which I keep enabled by default, is raising the following warning: warning : CA2218 : Microsoft.Usage : Since 'MySuperDuperClass' redefines Equals, it should also redefine GetHashCode. I think I understand the rationale for this warning: If I am going to be using such objects as the key in a collection, the hash code is important. i.e. see this question. However, I am not going to be using these objects as the key in a collection. Ever. Feeling justified to suppress the warning, I looked up code CA2218 in the MSDN documentation to get the full name of the warning so I could apply a SuppressMessage attribute to my class as follows: [SuppressMessage("Microsoft.Naming", "CA2218:OverrideGetHashCodeOnOverridingEquals", Justification="This class is not to be used as key in a hashtable.")] However, while reading further, I noticed the following: How to Fix Violations To fix a violation of this rule, provide an implementation of GetHashCode. For a pair of objects of the same type, you must ensure that the implementation returns the same value if your implementation of Equals returns true for the pair. When to Suppress Warnings ----- Do not suppress a warning from this rule. [arrow & emphasis mine] So, I'd like to know: Why shouldn't I suppress this warning as I was planning to? Doesn't my case warrant suppression? I don't want to code up an implementation of GetHashCode() for this object that will never get called, since my object will never be the key in a collection. If I wanted to be pedantic, instead of suppressing, would it be more reasonable for me to override GetHashCode() with an implementation that throws a NotImplementedException? Update: I just looked this subject up again in Bill Wagner's good book Effective C#, and he states in "Item 10: Understand the Pitfalls of GetHashCode()": If you're defining a type that won't ever be used as the key in a container, this won't matter. Types that represent window controls, web page controls, or database connections are unlikely to be used as keys in a collection. In those cases, do nothing. All reference types will have a hash code that is correct, even if it is very inefficient. [...] In most types that you create, the best approach is to avoid the existence of GetHashCode() entirely. ... that's where I originally got this idea that I need not be concerned about GetHashCode() always.

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  • Use the keyboard to activate the menu bar

    - by stevekuo
    In OSX, is it possible to navigate the menu bar without using the mouse (such as the arrow keys)? I'm looking for something similar to how Windows does this – pressing Alt allows the arrow keys to navigate the menu bar, pressing Enter invokes the menu item. This is more ergonomic as my hands don't have to leave the keyboard to invoke menu items. I'm aware of the various keyboard shortcuts, but unfortunately not all menu items have them. Followup: I discovered Full Keyboard Access which solves half the problem. With Full Keyboard Access set to All Controls, is there a key that activates the menu bar?

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  • Ubuntu 9.10 x86_32 with PAE causes graphics issues, mainly slowness

    - by widgisoft
    I've tried the 64bit version and found I was constantly hitting a brick wall trying to get 32bit stuff to run; I'd previously used PAE on 9.04 without any issues so figured I'd give it a shot. However, on 9.10 it seems PAE or the process of enabling PAE breaks the nvidia drivers/module somewhat as performance is terrible; I can't even enable desktop effects and there's lots of artifacting on random controls. Disabling the pae image and rebooting fixes the issue however I'm then stuck with "only" 2.7Gb of ram and unable to use the full 8gb that's installed. Is there somthing special I need to do when using pae and nVidia drivers or should I be using 64bit and just figure out how to force run 32bit packages? :-p

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  • Using AHK PostMessage to send WM_WININICHANGE to Program Manager

    - by SaintWacko
    I've written a script which updates an environment variable, but I need to tell Program Manager to update the computer's programs with this new information. I was given this as the API call that is made within another program to cause this: ::SendMessage(::FindWindow("Progman", NULL), WM_WININICHANGE, 0L, (LPARAM)"Environment"); I am attempting to translate this into an AutoHotKey PostMessage call, but I'm doing something wrong, as it isn't working. Here's where I've gotten so far: PostMessage, 0x1A,, (LPARAM)"Environment", "Program Manager" Here are the AHK resources I've been looking at to do this: List of Windows Messages Send Messages to a Window or Its Controls PostMessage / SendMessage And here are the resources that I used to figure out the original API call: SendMessage function WM_WININICHANGE message Can anyone help me figure out what I'm doing wrong?

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  • HTTP 401 Challenge and HTTP 302 Login/Redirect won't work together in IIS7

    - by RandomBen
    I am developing a website using .NET 3.5 that allow users to visit the site and create logins using the standard Microsoft login controls. However, users do not need to login to do general things like view products. Now I need to setup the site so some of our Traveling Sales people are able to access it but not allow anyone else to access it. The easiest way I know how to do this is to turn on Windows Authentication for the Site in IIS7. When I do that I get all sorts of errors due to also having Forms Authentication turned on. If I turn Forms Auth then I get a different kind of error. Does anyone know how to make Forms Auth and Windows Auth play nice on a single site in IIS7 or some other way to create a required login without having me kill Forms Auth?

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  • Union of complex polygons

    - by grenade
    Given two polygons: POLYGON((1 0, 1 8, 6 4, 1 0)) POLYGON((4 1, 3 5, 4 9, 9 5, 4 1),(4 5, 5 7, 6 7, 4 4, 4 5)) How can I calculate the union (combined polygon)? Dave's example uses SQL server to produce the union, but I need to accomplish the same in code. I'm looking for a mathematical formula or code example in any language that exposes the actual math. I am attempting to produce maps that combine countries dynamically into regions. I asked a related question here: http://stackoverflow.com/questions/2653812/grouping-geographical-shapes

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  • What would you recommend to do simple 2D Graphics?

    - by Tom Ritter
    I want to build a program that will (as part of what it's doing) display lines organically growing and interacting horizontally across the screen. Here's a sample image, just imagine the lines sprouting from the left and growing to the right: The lines would look like the lines used on Google Maps Transit Overlay or OnNYTurf's transit pages. It's a personal project, so I'm open to just about any language and library combination. But I don't know where to start. What have you used in the past to create graphics that are similar to this? What would you recommend? I want it to run on Windows without any extras needed (.Net is fine), and it doesn't have to run elsewhere. I needs to run as an actual program, not javascript in the browser. There's obviously no 'right' answer to this, but the purpose isn't to start an argument about X better than Y but rather just find a list of graphics toolkits that do simple 2D graphics that people recommend because of their ease of use or community or whatever.

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  • Dell SC1435 always requires F1 at boot

    - by David Mackintosh
    I have a Dell PowerEdge SC1435 that has come back after doing duty at a partner site. I am trying to configure it for local use. The only problem I have with it is that every time it boots it always requres a manual F1 press after the POST sequence. The last thing it does is give me the opportunity to configure the BMC, and then it says: Press F1 to continue or press F2 for Setup It will wait there forever (well, at least an hour). Pressing F1 starts the OS booting. I can't see the setting in the BIOS which controls this and I can't find it in the documentation. What am I missing?

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  • OpenLayers: Raise event when map is zoomed or moved by user

    - by David Pfeffer
    I'm using OpenLayers to display OpenStreetMap maps. (Though, I'd assume this should be general enough to work for any map product...) I'm displaying some very sophisticated vector overlays, and the amount and resolution of the features I'm returning from the server via GeoJSON to overlay has proven too much for many computers. What I'd like to do now instead is to only send data befitting the resolution of the current zoom, and fitting the current view port. This should be relatively easy to do using the GetResolution and CalculateBounds methods on the Map object. However, I don't know when to call these methods because I can't find a way to register a function to be called when the user pans the map (changing the view port) or zooms the map (changing the resolution and view port). How can I get a callback when the user pans or zooms the map?

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  • iPhone link to map directions using string "current location" not lat and lng for saddr

    - by Nick
    I know there are numerous questions about how to construct a sharedApplication link to the maps app specifying the start and end address with coordinates. I've got that working no problem. Has anyone found a way to link with a source address generically specified as "current location". I ask because the scenario I'm working on having Core Location or a UIMapView would only be necessary in order to determine the user location prior to handing off to the map app where the user locating would seem to just happen again. I've tried throwing UTF8'd "Current Location" and "[Current Location]" into the saddr parameter which amusingly starts from Current Montana. I've also tried simply excluding the saddr param. I know this is often tread territory but this particular situation wasn't covered by anything I found searching here or on mapki. Before I add the core location code I just wanted to make sure there wasn't a more limited way to tackle this. Thanks

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  • I would like to build an app that alerts me when road traffic is high or low. Where can I get the r

    - by MedicineMan
    I'm sitting at work, waiting for traffic to die down. The thought occurred to me. I know when I want to go home, why don't I have an app that watches traffic for me? I also know that there are a lot of smart people on stackoverflow. Where can I get live traffic data for the san francisco bay area region? The data source should be timely, accurate, and as high resolution as possible. I would like to build an app on top of a service, rather than watch google maps or watch another website. I would prefer that I not have to scrape the data, but I have been know to do this in the past when no other option exists.

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  • How can I best geocode a table of addresses in SQL Server?

    - by ess
    I've got a SQL Server 2008 table with addresses. I've got some C# code that can individually geocode the addresses. I've got a Google Maps API for geocoding. Now I'm trying to figure out the most efficient way to use these resources. I could write a console app that manually updates the tables using my C# library, but the data I have is updated periodically. I will be performing an import routine of some sort and I'm thinking it would be 'simplest' to perform the geocoding as the import occurs. I'm not so strong on SQL Server capabilities, so I'm looking for advice. I've considered letting the import call an assembly I create that would be referenced in SQL Server, but read that Sql Server 2008 has made it virtually impossible to reference your own DLL. So my next guess is having the import call a web service to pass in the address and update the table with the results, but I've not had much luck in finding info on this method. Any advice?

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  • How do I pan the contents of a div when the right mouse button is dragged?

    - by Shaunwithanau
    I need a cross browser way of capturing the right mouse click, preventing the default context menu and making it where when the user drags the mouse they can pan the contents of a div. This is largely similar to Google maps in that they will grip the contents and drag to see what they want. No external libraries please. I am already capturing the events, and know that this will prevent default actions: if (evt.preventDefault) { evt.preventDefault(); } else { evt.returnValue = false; } But this doesn't prevent the context menu AFAIK. Edit: I really am unsure about how to prevent the context menu and what the best way to manipulate the scroll bars would be? examples would be great

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  • What's the difference between logical SSE intrinsics?

    - by ~buratinas
    Hello, Is there any difference between logical SSE intrinsics for different types? For example if we take OR operation, there are three intrinsics: _mm_or_ps, _mm_or_pd and _mm_or_si128. My questions: Is there any difference between using one or another intrinsic (with appropriate type casting). Won't there be any hidden costs like longer execution in some specific situation? These intrinsics maps to three different x86 instructions (por, orps, orpd). Does anyone have any ideas why Intel is wasting precious opcode space for several instructions which do the same thing?

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  • How to calibrate a HDTV that is being used as monitor?

    - by Mike
    I have a HDTV I am using as a second monitor. The first monitor, is a real computer monitor, not a TV and has a fantastic image. The second one, the HDTV has a good image, but it is a little bit blurred and has the problem you can see on the picture below, a kind of red halo around the edges. I think it has something to do with red contrast. Other colors show this problem too, specially the green. The problem is that the TV has no contrast adjustment. Instead it has something called IRE 10 points and IRE 2 points. Taking IRE 10 for example, it has 4 controls for each of the 10 points: luminosity, R, G and B. I could not find a page where I can understand what this IRE is and how should I adjust this. Can someone tell me how should I proceed to calibrate this TV for best picture? thanks for any help.

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  • Why does adding a Flex DateChooser component throw an index out of bounds error?

    - by Lo'
    I'm facing an issue with the flex Application I'm currently working on. When I open a pop-up using the 'createPopUp' method, I've got this index out of bounds error message : RangeError: The supplied index is out of bounds. at mx.core::FTETextField/getLineMetrics()[E:\dev\4.y\frameworks\projects\spark\src\mx\core\FTETextField.as:2169] at mx.core::UIFTETextField/get baselinePosition()[E:\dev\4.y\frameworks\projects\spark\src\mx\core\UIFTETextField.as:784] at mx.controls::DateChooser/get baselinePosition()[E:\dev\4.y\frameworks\projects\mx\src\mx\controls\DateChooser.as:994] at spark.components::Group/get baselinePosition()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:282] at spark.layouts::ConstraintLayout/parseElementConstraints()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\ConstraintLayout.as:1818] at spark.layouts::ConstraintLayout/parseConstraints()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\ConstraintLayout.as:1632] at spark.layouts::ConstraintLayout/measure()[E:\dev\4.y\frameworks\projects\spark\src\spark\layouts\ConstraintLayout.as:414] at spark.components.supportClasses::GroupBase/measure()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\supportClasses\GroupBase.as:1148] at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::measureSizes()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:8506] at mx.core::UIComponent/validateSize()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:8430] at spark.components::Group/validateSize()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:1012] at mx.managers::LayoutManager/validateClient()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\LayoutManager.as:987] at mx.managers::PopUpManagerImpl/addPopUp()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\PopUpManagerImpl.as:382] at mx.managers::PopUpManagerImpl/createPopUp()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\PopUpManagerImpl.as:232] at mx.managers::PopUpManager$/createPopUp()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\PopUpManager.as:139] at views::AddProjects/loadAddProjectPopUp()[C:\Users\Laura\Web\spidermak\spidermak\src\views\AddProjects.mxml:184] at views::AddProjects/___AddProjects_Button1_click()[C:\Users\Laura\Web\spidermak\spidermak\src\views\AddProjects.mxml:838] It seems that this error is caused by a "dateChooser" component in my popup : <mx:DateChooser id="endDate"/> When I comment this line, the error is no longer thrown and the popup loads correctly. It's really weird because I didn't have this issue until this morning. All I did in the meantime was changing some layout-related stuff, but I don't see what is would have to do with this problem. I don't get it... Does anyone have a clue about how to fix this ? I need my DateChooser ! Thanks ! Laura EDIT - It seems that the problem is not caused by the DateChooser itself, but by the FormItem around it. Here's what my code looks like : <Form width="100%"> [...] <s:HGroup width="100%"> <s:FormItem label="Date de début"> <mx:DateChooser id="startDate" firstDayOfWeek="1"/> </s:FormItem> <s:FormItem label="Date de fin"> <mx:DateChooser id="endDate" firstDayOfWeek="1"/> </s:FormItem> </s:HGroup> </Form> If I remove the two FormItems, it works. Could anyone explain me why? Thanks !

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  • WCF: limit number of calls per hour - per user

    - by Eric Eijkelenboom
    Hi guys, I've got a WCF service (basicHttpBinding, basic authentication, IIS 6.0) on which I want to restrict the number of calls per hour - on user basis. For example, max 1000 calls per user, per hour (a la Google Maps, etc). I also want to implement some sort of subscription mechanism, so that users can upgrade their call-limit across various 'price plans'. I know that I could achieve this with a custom Inspector, backed by a DB containing some sort of 'subscription' table and a counter, but I'd like to avoid reinventing the wheel. Does anyone have experience doing this? Are there 3rd party projects/libraries that support this out of the box? Thanks. Eric

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  • Writing a code example

    - by Stefano Borini
    I would like to have your feedback regarding code examples. One of the most frustrating experiences I sometimes have when learning a new technology is finding useless examples. I think an example as the most precious thing that comes with a new library, language, or technology. It must be a starting point, a wise and unadulterated explanation on how to achieve a given result. A perfect example must have the following characteristics: Self contained: it should be small enough to be compiled or executed as a single program, without dependencies or complex makefiles. An example is also a strong functional test if you correctly installed the new technology. The more issues could arise, the more likely is that something goes wrong, and the more difficult is to debug and solve the situation. Pertinent: it should demonstrate one, and only one, specific feature of your software/library, involving the minimal additional behavior from external libraries. Helpful: the code should bring you forward, step by step, using comments or self-documenting code. Extensible: the example code should be a small “framework” or blueprint for additional tinkering. A learner can start by adding features to this blueprint. Recyclable: it should be possible to extract parts of the example to use in your own code Easy: An example code is not the place to show your code-fu skillz. Keep it easy. helpful acronym: SPHERE. Prototypical examples of violations of those rules are the following: Violation of self-containedness: an example spanning multiple files without any real need for it. If your example is a python program, keep everything into a single module file. Don’t sub-modularize it. In Java, try to keep everything into a single class, unless you really must partition some entity into a meaningful object you need to pass around (and java mandates one class per file, if I remember correctly). Violation of Pertinency: When showing how many different shapes you can draw, adding radio buttons and complex controls with all the possible choices for point shapes is a bad idea. You de-focalize your example code, introducing code for event handling, controls initialization etc., and this is not part the feature you want to demonstrate, they are unnecessary noise in the understanding of the crucial mechanisms providing the feature. Violation of Helpfulness: code containing dubious naming, wrong comments, hacks, and functions longer than one page of code. Violation of Extensibility: badly factored code that have everything into a single function, with potentially swappable entities embedded within the code. Example: if an example reads data from a file and displays it, create a method getData() returning a useful entity, instead of opening the file raw and plotting the stuff. This way, if the user of the library needs to read data from a HTTP server instead, he just has to modify the getData() module and use the example almost as-is. Another violation of Extensibility comes if the example code is not under a fully liberal (e.g. MIT or BSD) license. Violation of Recyclability: when the code layout is so intermingled that is difficult to easily copy and paste parts of it and recycle them into another program. Again, licensing is also a factor. Violation of Easiness: Yes, you are a functional-programming nerd and want to show how cool you are by doing everything on a single line of map, filter and so on, but that could not be helpful to someone else, who is already under pressure to understand your library, and now has to understand your code as well. And in general, the final rule: if it takes more than 10 minutes to do the following: compile the code, run it, read the source, and understand it fully, it means that the example is not a good one. Please let me know your opinion, either positive or negative, or experience on this regard.

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  • Confused by Perl grep function

    - by titaniumdecoy
    I don't understand the last line of this function from Programming Perl 3e. Here's how you might write a function that does a kind of set intersection by returning a list of keys occurring in all the hashes passed to it: @common = inter( \%foo, \%bar, \%joe ); sub inter { my %seen; for my $href (@_) { while (my $k = each %$href) { $seen{$k}++; } } return grep { $seen{$_} == @_ } keys %seen; } I understand that %seen is a hash which maps each key to the number of times it was encountered in any of the hashes provided to the function.

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  • JQuery Autocomplete only suggesting first row

    - by Chris McCall
    I'm doing research using JQuery's Autocomplete plugin and Google Maps' API. What I have so far is located here. I'm using Asp.net MVC to generate the list of potential address matches (limited to US addresses only) and presenting them as a pipe-delimeted list to Autocomplete, which is supposed to be .spliting them up and suggesting them to the user. The problem I'm having (besides a stubborn IE-only javascript error, which I'll break into another question), is that only the first result is suggested. This page clearly shows two results, yet typing "3118" into the textbox produces only the Galax Dr result. How can I get Automplete to produce both results?

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