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• x=["key" => "value"]. How does it work in Ruby?

  - by Earlz

  Ok, so I was comparing some stuff in my own DSL to Ruby. One construct they both support is this x=["key" => "value"] Knowing the difference between arrays and hashes, I would think this to be illegal, but the result in Ruby is [{"key" => "value"}] Why is this? And with this kinda syntax why can't you do x=("key" => "value") Why is an array a special case for implicitly created hashes?

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• Silverlight - round doubles away from zero

  - by Cornel

  In Silverlight the Math.Round() method does not contain an overload with 'MidpointRounding' parameter. What is the best approach to round a double away from zero in Silverlight in this case? Example: Math.Round(1.4) = 1 Math.Round(1.5) = 2 Math.Round(1.6) = 2

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• question related to UITextView

  - by user177893

  I have n number of UITextview and that are added to UIScrollview.and uiscrollview is added to self.view.Now,I want that 1If user enter text in first UITextview ,then as lenth increase os UITextview ,another UITextviews which are below it also reinitialize and maintain properly according to the size of first UITextView.inshort another UITextviews go more below then it was. 2It should work in any of the case ,wether user presses return key after entering text into UITextView or may be not till end

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• How to call an action method of a UICommand Component which was rendered conditionally?

  - by gurupriyan.e

  action method is not called Please refer to this question - , One of my UICommand Component is rendered conditionally , it was said in the answer of the linked question - point 5 - that if the Component's or any of its parents rendered or disabled attributes are false - then the action method will not be called ? If thats the case- How do i achieve the same functionality? Is there a work around ? or a trick ? or any other approach ? Thanks!

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• iOS: how to understand the role of rootviewcontroller and its relationship with other objects

  - by Anthony Kong

  I have created a UISplitViewController based iOS app in XCode 3.2.5 Below is a screen shot of Interface builder showing the rootviewcontroller and how it is linked to other objects. Being a beginner myself, I do not understand: 1) What is the role of the rootviewcontroller? Searched the documentation but what I found did not answer this question. 2) I thought a IBOutlet should only link to one corresponding object. Why in this case the rootviewcontroller is linked to two?

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• SQL 2000 - Returning from a Stored Procedure

  - by user70192

  Hello, I'm writing a stored procedure. This procedure has a case where if it is met, I want to stop executing the procedure and return -1. How do I do this? Currently, I'm trying the following: IF @result <> 1 BEGIN SELECT -1 END However, SELECT is not a typical "return". As you can imagine I spend most of my time in code which is why i'm looking for something like a "return". Thank you,

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• Make dialogs compatible with "large fonts".

  - by Narcís Calvet

  Which do you think are best practices for making a windows dialog compatible both with standard fonts (96 dpi) and "large fonts" setting (120 dpi) so that objects don't overlap or get cut off? BTW: Just in case it's relevant, I'm interested in doing this for Delphi dialogs. Thanks in advance!

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• Is there thing like pass by value pass by reference in JavaScript ?

  - by Anil Namde

  When i started learning function in C++ its all around pass by value and reference. Is there something similar we have in javascript ? If yes/not how it works in case of javascript? Thanks all.

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• Cocoa: what is the var name of an instance created by a NIB file?

  - by Nibbles

  When a Cocoa NIB file instantiates an instance of a custom controller object, what is the name of the variable that that custom controller instance is assigned to? In case that isn't clear, if you manually created an instance of that class you would do: MyControllerClass *myVar = [[MyControllerClass alloc] init]; What equivalent of "myVar" has the NIB used when doing this behind the scenes?

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• Concurrent program languages for Chat and Twitter-like Apps.

  - by xRobot

  I need to create a simple Chat system like facebook chat and a twitter-like app. What is the best concurrent program languages in this case ? Erlang, Haskell, Scala or anything else ? Thanks ^_^

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• Are NHibernate lists loaded on demand?

  - by André Pena

  This is a pretty simple question. When I do this: session.CreateCriteria(typeof(Product)).List(); The resulting list will load as I access it? Let's say, from 100 to 100 elements for example? Or will it load all once? In the case it's not "virtual" how can I make it so? What's the best pratice about it? Thanks;

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• Websites that archive cross-browser css/js bugs?

  - by meder

  I'm about to develop my own browser inconsistency/bug compendium site but I'm wondering if I really need to - can we get a wiki of sites that do this already? I'm aware of a lot of them but I hope I'm not missing out on some major ones. I wanted mine to be more intuitive and social-like for most people, powered by tags and screenshots and test-case pages.

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• help with $(this).val() toUpperCase()

  - by rod

  Hi All, Given: <script type="text/javascript"> $(document).ready(function () { var str = 'Test'; //alert(str.toUpperCase()); $('#stringFinder').keyup(function (e) { alert($(this).val()==str.toUpperCase()); }); }); </script> How do I make $(this).val() all upper case to get a like comparison? Thanks, rodchar

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• Is there a programmatic way to determine whether the file is being used?

  - by AngryHacker

  Case and point: I need to open an Excel file via Interop and it would help a lot to avoid ugly COM errors if I knew that the file was in use. Other than trying to open the file and catching the exception, is there a programmatic way to determine whether the file is in use?

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• Automatically inserting new fields in a web.config file

  - by MarceloRamires

  I have an ASP.NET project which has already some custom fields in it's web.config file. I've added in it three more fields and used them in my changes, and it's working great. But where it needs to be used, there aren't these thre fields in the web.config (this was expected, I've just added by hand for tests and developing). How do I check the existance of fields in web.config, and in case of not finding it, how do I add it permanently to the web.config ? Thank you

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• some qeustions about Vector in STL

  - by skydoor

  I have some questions about vector in STL to clarify..... 1 Where are the objects in vector allocated? heap? 2 does vector have boundary check? If the index out of the boundary, what error will happen? 3 Why array is faster than vector? 4 Is there any case in which vector is not applicable but array is a must?

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• Android String.equals doesn't work when I trying to match from httpresponse

  - by user469652

  RestClient.post("auth/login/", loginparam, new AsyncHttpResponseHandler() { @Override public void onSuccess(String s) { Toast.makeText(getApplicationContext(), String.valueOf(s.toLowerCase().equals("ok")), Toast.LENGTH_LONG).show(); if (s.equals("ok")) { startActivity(new Intent(getApplication(), HomeActivity.class)); } } }); This is the code I used for login in android app, In the Toast text, I can see the server did returned "ok", but s.equals always failed in my case, can someone explain that? Thank you.

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• Transposing UML into code

  - by James P.

  Short question. How do you go about transposing UML diagrams into code? The class diagram is an obvious one but what about others Activity, Use Case, Sequence, State, Package, etc.?

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• Web Service SOAP Message Routing

  - by anon

  I have a case where i need to route a Web Service SOAP message through an intermediary server. Can anyone point me in the direction of some good resources on how to accomplish this?

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• Any reason not to use USE_ETAGS with CommonMiddleware in Django?

  - by allyourcode

  The only reason I can think of is that calculating ETag's might be expensive. If pages change very quickly, the browser's cache is likely to be invalidated by the ETag. In that case, calculating the ETag would be a waste of time. On the other hand, a giving a 304 response when possible minimizes the amount of time spent in transmission. What are some good guidelines for when ETag's are likely to be a net winner when implemented with Django's CommonMiddleware?

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• Is it possible to use SQL XML to insert, and get output from each record?

  - by nbolton

  I would like to perform a SQL XML insert (on MSSQL), and in this case I need to insert a list of files into the DB (this is simple enough). However, there's an auto generated PK column (ID), and I need the ID for each newly created filename without performing a 2nd query. Is this possible? I guess it doesn't matter if the result is/isn't XML, but the input certainly has to be.

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• No IO exception reported for socket operation when the interface is removed

  - by user352536

  The wifi network is connected, the application setup a socket connection and exchange data with the remote server. But when turn off the wifi, the inteface is removed, while socket operation read/write on this socket is still like normal, no any IO exception reported. The application has to do some extra checking to avoid waiting for the data forever. Is this the normal case for Android design? Is there any plan to fix it?

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• is hashCode() must return a prime number

  - by subhashis

  The signature of the hashCode() method is public int hashCode(){ return x; } in this case x must be an int(primitive) but plz can anyone explain it to me that the number which the hashCode() returns must be a prime number, even number...etc or there is no specification ? the reason behind i am asking this question is i have seen it in different ids the auto generated code always returns a prime number, so i need to know why? thanks in advance

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• Cannot redirect after HTTP headers have been sent.

  - by Anilkumar

  When I try to redirect to another page through Response.Redirect(URL) am getting the following error:- System.Web.HttpException: Cannot redirect after HTTP headers have been sent. I wrote one Response.Write("Sometext"); and Response.Flush() before calling redirect Method. In this case how do we use Response.Redirect(URL)?

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• Qt- how to set QWidget width

  - by Narek

  How to set QWidget width? I know setGeometry(QRect& rect) function to do that, but in that case I should use geometry() function to get former parameters of my QWidget, then I should increment the width and use setGeometry(..). Is there any ditect way to say QWidget aa; aa.setWidth(165); //something like this?

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