Search Results

Search found 8463 results on 339 pages for 'bad learner'.

Page 203/339 | < Previous Page | 199 200 201 202 203 204 205 206 207 208 209 210  | Next Page >

  • How did Perl gain a reputation for being a write-only language?

    - by Andrew Grimm
    How did Perl gain a reputation (deserved, undeserved, or used to be deserved, no longer so) of being a "write only language"? Was it The syntax of the language Specific features that were available in the language Specific features not being available in the language (or at least old versions of it) The kind of tasks Perl was being used for The kind of people who use Perl (people who aren't full-time programmers) Criticism from people committed to another language Something else? Background: I'd like to know if some aspects that gave Perl the reputation of being write-only also apply to other languages (specifically ruby). Disclaimer: I recognise that Perl doesn't force people to do write-only code (can any language?), and that you can write bad code in any language.

    Read the article

  • Debuging to simulator crashes with "exited with status 5" unless I debug

    - by tigermain
    For some reason the app I am working on has very bad PMT! Literally! Most of the time I cannot debug using the simulator without putting a breakpoint in my AppDelegate. If I don't it exists with "status 5". If I put a break point in and simple continue it works perfectly well, it also works if I run the app in the simulator when not connected to the GDB. I have tried the source on a second machine with exactly the same results. I dont have this issue building to the device?!?!?! Thanks

    Read the article

  • Unsigned versus signed numbers as indexes

    - by simendsjo
    Whats the rationale for using signed numbers as indexes in .Net? In Python, you can index from the end of an array by sending negative numbers, but this is not the case in .Net. It's not easy for .Net to add such a feature later as it could break other code perhaps using special rules (yeah, a bad idea, but I guess it happens) on indexing. Not that I have ever have needed to index arrays over 2,147,483,647 in size, but I really cannot understand why they choose signed numbers. Can it be because it's more normal to use signed numbers in code?

    Read the article

  • Deep Null checking, is there a better way?

    - by Mattias Konradsson
    We've all been there, we have some deep property like cake.frosting.berries.loader that we need to check if it's null so there's no exception. The way to do is is to use a short-circuiting if statement if (cake != null && cake.frosting != null && cake.frosting.berries != null) ... This strikes me however as not very elegant, there should perhaps be an easier way to check the entire chain and see if it comes up against a null variable/property. So is it possible using some extension method or would it be a language feature, or is it just a bad idea?

    Read the article

  • How to deal with databases for websites written in Java, more specifically Wicket?

    - by John
    Hi there. I'm new to website development using Java but I've got started with Wicket and make a little website. I'd like to expand on what I've already made (a website with a form, labels and links) and implement database connectivity. I've looked at a couple of examples, in example Mystic Paste, and I see that they're using Hibernate and Spring. I've never touched Hibernate or Spring before and to be honest the heavy use of annotations scare me a little bit as I haven't really made use of them before, with the exception of supressing warnings and overriding. At this point I have one Connection object which I set up in the WebApplication class upon initialization. I then retrieve this connection object whenever I need to perform queries. I don't know if this is a bad approach or not for a production web application. All help is greatly appreciated.

    Read the article

  • Getting the location from a WebClient on a HTTP 302 Redirect?

    - by Michael Stum
    I have a URL that returns a HTTP 302 redirect, and I would like to get the URL it redirects to. The problem is that System.Net.WebClient seems to actually follow it, which is bad. HttpWebRequest seems to do the same. Is there a way to make a simple HTTP Request and get back the target Location without the WebClient following it? I'm tempted to do raw socket communication as HTTP is simple enough, but the site uses HTTPS and I don't want to do the Handshaking. At the end, I don't care which class I use, I just don't want it to follow HTTP 302 Redirects :)

    Read the article

  • URL valid characters. java to validate.

    - by Chez
    a string like: 'www.test.com' is good. a string like: 'www.888.com' is good. a string like: 'stackoverflow.com' is good. a string like: 'GOoGle.Com' is good. why ? because those are valid urls. it does not necessarely matter if they have been registered or not. now bad strings are: 'goog*d\x' 'manydots...com' why because you can't register those urls. if I have a string in java which is supposed to be a good url what's the best way to validate it ? thanks a lot

    Read the article

  • How to build an easy Rails authentication with OpenID and OAuth1.0a-2.0?

    - by Andrei
    Hi, I'am looking for an easy authentication for my users mostly via facebook, but keeping OpenID and other OAuth alternatives as well. For the case if something will go very bad, I will ask my users to optionally provide their email address, which should be obtained via OpenID or OAuth if possible. The same thing is about their name. I am a newbie in Rails, so I started with Railscasts.com #160 (authlogic) and #170 (authlogic and OpenID), however, I had some problems trying to sign in with my Google Account. As I understand, it will take some effort to adjust #170 for my objectives. On the other hand, there is gem authlogic_rpx which will possibly provide me the needed functionality (see http://rails-authlogic-rpx-sample.heroku.com/signin). What would you do? Is it reasonable to put one more step (RPX) in the authentication logic?

    Read the article

  • Facebook application domain settings

    - by user887961
    we were working on our sandbox trying to get the facebook like button set up for our site. Like an idiot, I set our sandbox URL as the domain. Here's the question: is there any going back once I've done this? I tried to reset the domain but it doesn't seem to have taken. And, here's a related question: if i just go and make a like button (iFrame version) it spits out an app_id as part of the code. If that app_id isn't hooked up to an actual application w/domain, will it work after we move it to our QA server and then on to production? Or will it, once we've tested on our sandbox, establish the sandbox as it's domain and then we're back where we started? We can't change code once it moves on to QA, it's just bad form...so what do I do?

    Read the article

  • Search for Variable Usage In SSIS tasks

    - by yoni.s
    Hi all: As what seems to be some sort of penance for sins in a prior life, I have been tasked with maintaining some SSIS packages. (NO! NO BADMOUTHING SSIS!! BAD PROGRAMMMER! NO DOUGHNUT!). Anyhoo, I many of the packages have variables, defined in an outer container, which are used in multiple inner containers, in script tasks. What I want to do, is find out all the places in a package a variable being used; in other words, search for instances of variable usage in all tasks of a package. This would be a huge help, but I cannot for the life of me find out how this can be done in BIDS. (this is SSIS/BIDS 2008) Thanks for any help, YS

    Read the article

  • How to make msbuild ItemGroup items be separated with a space rather than semi-colon?

    - by mark
    Dear ladies and sirs. Observe the following piece of an msbuild script: <ItemGroup> <R Include="-Microsoft.Design#CA1000" /> <R Include="-Microsoft.Design#CA1002" /> </ItemGroup> I want to convert it to /ruleid:-Microsoft.Design#CA1000 /ruleid:-Microsoft.Design#CA1002 Now, the best I came up with is @(R -> '/ruleid:%(Identity)'), but this only yields /ruleid:-Microsoft.Design#CA1000;/ruleid:-Microsoft.Design#CA1002 Note the semi-colon separating the two rules, instead of a space. This is bad, it is not recognized by the fxcop - I need a space there. Now, this is a simple example, so I could just declare something like this: <PropertyGroup> <R>/ruleid:-Microsoft.Design#CA1000 /ruleid:-Microsoft.Design#CA1002</R </PropertyGroup> But, I do not like this, because in reality I have many rules I wish to disable and listing all of them like this is something I wish to avoid.

    Read the article

  • Better way to write this SQL

    - by AngryHacker
    I have the following table: create table ARDebitDetail(ID_ARDebitDetail int identity, ID_Hearing int, ID_AdvancedRatePlan int) I am trying to get the latest ID_AdvancedRatePlan based on a ID_Hearing. By latest I mean with the largest ID_ARDebitDetail. I have this query and it works fine. select ID_AdvancedRatePlan from ARDebitDetails where ID_Hearing = 135878 and ID_ARDebitDetail = ( select max(ID_ARDebitDetail) from ARDebitDetails where ID_AdvancedRatePlan > 0 and ID_Hearing = 135878 ) However, it just looks ugly and smells bad. Is there a way to rewrite it in a more concise manner?

    Read the article

  • Factorial Algorithms in different languages

    - by Brad Gilbert
    I want to see all the different ways you can come up with, for a factorial subroutine, or program. The hope is that anyone can come here and see if they might want to learn a new language. Ideas: Procedural Functional Object Oriented One liners Obfuscated Oddball Bad Code Polyglot Basically I want to see an example, of different ways of writing an algorithm, and what they would look like in different languages. Please limit it to one example per entry. I will allow you to have more than one example per answer, if you are trying to highlight a specific style, language, or just a well thought out idea that lends itself to being in one post. The only real requirement is it must find the factorial of a given argument, in all languages represented. Be Creative! Recommended Guideline: # Language Name: Optional Style type - Optional bullet points Code Goes Here Other informational text goes here I will ocasionally go along and edit any answer that does not have decent formatting.

    Read the article

  • XmlDocument.InnerXml is null, but InnerText is not

    - by Adam Neal
    I'm using XmlDocument and XmlElement to build a simple (but large) XML document that looks something like: <Widgets> <Widget> <Stuff>foo</Stuff> <MoreStuff>bar</MoreStuff>...lots more child nodes </Widget> <Widget>...lots more Widget nodes </Widgets> My problem is that when I'm done building the XML, the XmlDocument.InnerXml is null, but the InnerText still shows all the text of all the child nodes. Has anyone ever seen a problem like this before? What kind of input data would cause these symptoms? I expected the XmlDocument to just throw an exception if it was given bad data. Note: I'm pretty sure this is related to the input data as I can only reproduce it against certain data sets. I also tried escaping the data with SecurityElement.Escape but it made no difference.

    Read the article

  • CentOS: revert python version back to original

    - by NP
    Hi all, I installed python 2.6 using the instructions here on CentOS 5.4. However I realized it was a bad move and I need to revert back to 2.4, which was there originally. Can anyone guide me on how to undo what I did here? In particular, I am not sure how to undo this: Configure ld to find your shared libs: $ cat /etc/ld.so.conf.d/opt-python2.5.conf /opt/python2.5/lib (hit enter) (hit ctrl-d to return to shell) $ ldconfig I tried removing the alias and the symlink and even re-aliasing python to /usr/bin/python, but when I try to install an RPM i get this error: error: Failed dependencies: libpython2.4.so.1.0 is needed by ... Thanks in advance.

    Read the article

  • Replication - syncronizing most of the data some of the time

    - by uncle brad
    I have some data that isn't properly "partitioned" (for lack of a better word). All inserts, processing and reporting happen on the same table. The bulk of the processing happens not long after the insert and not long after that it becomes immutable (we're talking days). I could do all inserts and processing on a new table that I replicate to the old table. When I detect that the data has become immutable I would delete the data from the new table, but I would edit the delete replication stored procedure so that the delete did not replicate. How bad an idea is this? It seems attractive at the moment (I haven't slept on it yet) because it might mitigate a performance problem with only very small changes to the application. It also seems like it might be a good way to shoot myself in the foot.

    Read the article

  • How to rewrite to a virtual directory with a different application

    - by Eytan Levit
    Hi, I have a CMS application that manages multiple websites, today whenever i change the codebehind of one of these websites - i have to rebuild the dll for all websites, deploy it - this disconnects all current sessions and is really bad. The iis is configured to listen to all domain requests, if the request is to one of the websites' domain , the application rewrites it, or example, if someone requests for http://www.example.com, and example.com is configured in the application to be website 12, it is rewritten to http://www.example.com/websites/12/default.aspx. This is done for all websites. We want to seperate the dlls of the websites from each other, and from the main CMS, we have a virtual directory to each websites, but when trying to rewrite to it, we discover that IIS support this (we get an "Could not load type '_12._Default'". error). How can we perform this rewrite so it does rewrite to virtual directories, or if anyone has any other solution for the initial dll seperation problem. Thanks in advance

    Read the article

  • Hot deploy on Heroku with no downtime

    - by zetarun
    A bad side of pushing to Heroku is that I must push the code (and the server restarts automatically) before running my db migrations. This can obviously cause some 500 errors on users navigating the website having the new code without the new tables/attributes: the solution proposed by Heroku is to use the maintenance mode, but I want a way with no downside letting my webapp running everytime! Is there a way? For example with Capistrano: I prepare the code to deploy in a new dir I run (backward) migrations and the old code continue to work perfectly I swith mongrel instance to the new dir and restart the server ...and I have no downtime!

    Read the article

  • better way to write this

    - by ash34
    Hi, I have to create a hash of the form h[:bill] = ["Billy", "NA", 20, "PROJ_A"] by login where 20 is the cumulative number of hours reported by the login for all task transactions returned by the query where each login has multiple reported transactions. Did I do this in a bad way or this seems alright. h = Hash.new Task.find_each(:include => [:user], :joins => :user, :conditions => ["from_date >= ? AND from_date <= ? AND category = ?", Date.today - 30, Date.today + 30, 'PROJ1']) do |t| h[t.login.intern] = [t.user.name, 'NA', h[t.login.intern].nil? ? (t.hrs_per_day * t.num_days) : h[t.login.intern][2] + (t.hrs_day * t.workdays), t.category] end Also if I have to aggregate not just by login but login and category how do I accomplish this? thanks, ash

    Read the article

  • Problem with Sphinx resultset larger than 16 MB in MySQL

    - by gmemon
    Hello All, I am accessing a large indexed text dataset using sphinxse via MySQL. The size of resultset is on the order of gigabytes. However, I have noticed that MySQL stops the query with following error whenever the dataset is larger than 16MB: 1430 (HY000): There was a problem processing the query on the foreign data source. Data source error: bad searchd response length (length=16777523) length shows the length of resultset that offended MySQL. I have tried the same query with Sphinx's standalone search program. It works fine. I have tried all possible variables in both MySQL and Sphinx, but nothing is helping. I am using Sphinx 0.9.9 rc-2 and MySQL 5.1.46. Thanks

    Read the article

  • noindex, follow on list views?

    - by Fabrizio
    On one of our client's website we have lot's of list views with links to detail views. (Image a blog with the posts overview and the single pages). The detail views don't change, but the list views will change when new items come up. The pages displaying the list view don't contain any other valuable content. So my question is: Does it make sense to define meta "noindex, follow" on the list view pages (and of course "index, follow" on the detail views) to prevent search engines to point to the list views when the keyword is found in the title or teaser of the list view. By the time the visitor clicks on the list view search result it might have changed and the content is not visible anymore, whereas if he goes directly to the single view he will definitly find what he was searching for? Related question: The startpage also contains mainly a list view. Is it a bad idea to have the start page not indexed? Any SEO gurus here? :) Thanks, Fabrizio.

    Read the article

  • Weird use of generics

    - by Karl Trumstedt
    After a bit of programming one of my classes used generics in a way I never seen before. I would like some opinions of this, if it's bad coding or not. abstract class Base<T> : where T : Base<T> { // omitted methods and properties. virtual void CopyTo(T instance) { /*code*/ } } class Derived : Base<Derived> { override void CopyTo(Derived instance) { base.CopyTo(instance); // copy remaining stuff here } } is this an OK use of generics or not? I'm mostly thinking about the constraint to "itself". I sometimes feel like generics can "explode" to other classes where I use the Base class.

    Read the article

  • Make jQuery-ui draggable handle cover entire page

    - by Acorn
    What would be the best way to make an element draggable when clicking anywhere in the window? Would I have to use a container <div> that covers the whole window? I tried making the body draggable but that didn't work. The problem with using a container <div> is that it moves and therefore doesn't cover the whole of the screen any more after it has been dragged. What about making a really vast container <div> that spans a large number of pixels in every direction so you would never get to the edge of it. Is that a bad idea? The idea (simplified) is to have a page with a square in the middle that can be dragged by dragging any part of the window. Here's a wonderfully unnecessary mockup :)

    Read the article

  • Automatically pulling on remote server with Git push?

    - by Vernon
    Here's what I'm trying to do: I have a GitHub repository, a portion of which I'd like to make web viewable. Right now I've cloned the repository on my own server and it works well, but in order to keep it up to date, I have to manually login and pull the latest changes. I'm not sure if this is the best idea (or the best approach), but I'd like the remote server to automatically pull whenever someone pushes to repository. GitHub makes it easy enough to run a script when someone pushes, but I'm not sure how to pull once someone does that. I was using PHP for simplicity, but just doing something like git pull naturally doesn't work because of permissions. Is this a bad idea or is there another way of achieving what I want to do? This seems like a common set up, but I wasn't sure. Thanks.

    Read the article

  • Wicket app in embedded Jetty causes UnsupportedClassVersionError

    - by Ondra Žižka
    I've tried to run a Wicket app in an embedded Jetty, using this code: public static void main( String[] args ){ Server server = new Server(8080); Context root = new Context( server, "/", Context.SESSIONS ); FilterHolder filterHolder = new FilterHolder( new WicketFilter() ); filterHolder.getInitParameters().put("applicationClassName", cz.dw.test.WicketApplication.class.getName() ); root.addFilter( filterHolder, "/*" , Handler.ALL ); try { server.start(); } catch (Exception ex) { ex.printStackTrace(); } } But I got java.lang.UnsupportedClassVersionError: Bad version number in .class file. Switching the target class version for my app (1.6 - 1.5) did not help. I use Sun JDK 1.6.0_17, Wicket 1.4.8, Jetty 6.1.24. I tried to debug, but the JRE classes have no debug data. The stacktrace is of no use as it happens when loading the classes into JVM. Any ideas what could be wrong? How can I find which class is causing this? Thanks, Ondra

    Read the article

< Previous Page | 199 200 201 202 203 204 205 206 207 208 209 210  | Next Page >