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• alias of nodejs as node on 14.04

  - by Koka

  i installed nodejs with apt-get on 14.04 When i do nodejs -v v0.10.25 and when i do node -v node : command not found. So i want to make alias of nodejs as node So i inserted a line in ~/.bashrc alias node=nodejs Now i can access the nodejs with node on terminal. But in my project, i use grunt which fires nodemon via gruntfile.js. Now nodemon tries to run node instead of nodejs Now again i get the same problem node : command not found. Means alias was not made for non-interactive shell non-login shell. Where should i make the alias for this specific purpose and get my problem solved?

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• How do you do ASP.Net performance testing?

  - by John

  Our team is in need of a performance testing process. We use ASP.Net (both web forms and MVC) and performance testing is not currently built into our projects. We occasionally do some ad-hoc analysis, such as checking the load on the server or SQL Server Profiler, but we don't have a true beginning to end, built into the project performance testing methodology. Where is a good place to start? I'm interested in both: Process - General knowledge, including best practices. Essential list of tools. I'm aware of a few tools, such as what's built into the pricier versions of VS 2010 and JetBrains products, though I haven't used them.

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• What package do I need to build a Qt 5 & CMake application?

  - by Kevin Reid

  I'm trying to build sdrangelove, which wants Qt 5 and uses CMake for its build system, on Ubuntu 13.10. What package do I need to install to give it the file it's asking for here? There are a lot of *qt5* packages, and I've tried installing the promising looking ones to no effect. All the discussions I've found either have things working fine or are talking about writing CMake build rules rather than executing them. I don't have a lot of experience with the organization of Debian/Ubuntu packaging. CMake Error at CMakeLists.txt:14 (find_package): By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Core", but CMake did not find one. Could not find a package configuration file provided by "Qt5Core" (requested version 5.0) with any of the following names: Qt5CoreConfig.cmake qt5core-config.cmake Add the installation prefix of "Qt5Core" to CMAKE_PREFIX_PATH or set "Qt5Core_DIR" to a directory containing one of the above files. If "Qt5Core" provides a separate development package or SDK, be sure it has been installed.

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• Can you be a web and desktop developer at the same time?

  - by Charmop

  In my environment, I found web programmers, desktop programmers and both web and desktop programmers. About myself I started my career with desktop development using C and then Java, did couple of simple level projects. Then at the final graduating year, my project was a web one, so I turned to web development until this moment. But, when I meet people having chosen to be web or software developers from the beginning, I figure out that they have more knowledge/experience than I have. So I get kind of regret why didn't I specialize my self from the first day? The question is: Is it a good habit to work at two, more or less, different fields: web and desktop? Or we must specialize ourselves?

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• Copy machine security issues.

  - by David Nudelman

  I am involved on a project to talk to communities about the risks of posting online content is social networks. But this time I was really impressed how far security concerns can go. This video from CBS news talks about security risks related to corporate fax/printers and scanners. It was very clear that when they got the machines they selected the machines by previous owner and they were not random machines, but still, I will never scan from my company machine again. I guess the price of multifunction printers will go up if this video goes viral. Regards, David Nudelman

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• I prefer C/C++ over Unity and other tools: is it such a big downer for a game developper ?

  - by jokoon

  We have a big game project on Unity at school on which we are 12 to work on. My teacher seems to be convinced it's an important tool to teach students, since it makes students look from the high level to the lower level. I can understand his view, and I'm wondering: Is unity such an important engine in game developping companies ? Are there a lot of companies using it because they can't afford to use something else ? He is talking like Unity is a big player in game making, but I only see it fit small indie game companies who want to do a game as fast as possible. Do you think Unity is that much important in the industry ? Does it endangers the value of C++ skills ? It's not that I don't like Unity, it's just that I don't learn nothing with it, I prefer to achieve little steps with Ogre or SFML instead. Also, we also have C++ practice exercises, but those are just practice with theory, nothing much.

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• Run the Windows .net Application in System Tray on System Startup

  - by Rajneesh Verma

  Hi, Today i have created a .net windows application which has following key points. 1. Run only one instance of the project: to achieve this i have change the code of Program.cs as: Code Snippet static class Program { /// <summary> /// The main entry point for the application. /// </summary> [ STAThread ] static void Main() { bool instanceCountOne = false ; using ( Mutex mtex = new Mutex ( true , "MyRunningApp" , out instanceCountOne)) { if (instanceCountOne) { Application ...(read more)

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• Oracle BI and EPM Partner Blogs

  - by Mike.Hallett(at)Oracle-BI&EPM

  Below is a simple list of some of our specialist Oracle BI and EPM Partner Blogs, where there is lots of great material and discussions.   http://www.aortabi.nl/news/ Netherlands http://www.clearpeaks.com/blog/ English http://www.peakindicators.com/index.php/knowledge-base English http://www.project.eu.com/blog/ English http://www.qubix.co.uk/insights English http://www.rittmanmead.com/blog/ English https://www.endecacommunity.com/ English   If you are a specialist OPN EMEA BI and EPM Partner with hints and tips to share, and would like your Blog to be added to this list, then just let me know @ [email protected].

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• Awarded Visual Studio ALM MVP for 2012!

  - by Jakob Ehn

  Today I received an email from Microsoft stating that: Dear Jakob Ehn, Congratulations! We are pleased to present you with the 2012 Microsoft® MVP Award! This award is given to exceptional technical community leaders who actively share their high quality, real world expertise with others. We appreciate your outstanding contributions in Visual Studio ALM technical communities during the past year.   This is incredibles news and I really want to thank both the people at Microsoft who nominated me and some of the (now) fellow MVP’s that I have worked with over the last year, both as part of the Visual Studio ALM Rangers program and as part of the TFS Build Extensions community project, in particular Mike Fourie and of course my colleague and main source of inspiration Terje Sandström    I’m really looking forward to this year, it’s going to be a blast!

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• How do you develop web applications? [closed]

  - by ck3g

  How do you and/or your team develop your web applications? Language, framework or platform doesn't matter. I would like to know about the structure of your environment. For example: Using IDE on workstation and project files on remote host accessing via sftp. Files are saved instantly on remote host; All files are local and are uploaded on remote host during saving; Files are local, web server is running on local computer and is tested at local host. etc. You could write down also about the benefits of your approach, this will be useful for me. Thanks upd: Here must be a question and here it is: which is the best approach by your opinion?

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• What are the advantages and challenges of using HaXe over ActionScript 3?

  - by Arthur Wulf White

  I read this: http://webr3.org/blog/haxe/bitmapdata-vectors-bytearrays-and-optimization/ And this: http://stackoverflow.com/questions/5220045/what-are-the-pro-and-cons-of-using-haxe-over-actionscript-3 http://www.haxenme.org/developers/documentation/actionscript-developers/ I read there are only two books, is that right? http://haxe.org/doc/book I also see that using FlashDevelop you can make an Adobe Air project with HaXe and compile to exe. And begun to wonder from a game making perspective: I saw the example in the first link, are there any additional advantages in performance when using HaXe instead of AS3 for games development (for the web)?

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• Is it a bad practice to store large files (10 MB) in a database?

  - by B Seven

  I am currently creating a web application that allows users to store and share files, 1 MB - 10 MB in size. It seems to me that storing the files in a database will significantly slow down database access. Is this a valid concern? Is it better to store the files in the file system and save the file name and path in the database? Are there any best practices related to storing files when working with a database? I am working in PHP and MySQL for this project, but is the issue the same for most environments (Ruby on Rails, PHP, .NET) and databases (MySQL, PostgreSQL).

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• I need a webpage to host my javascript!

  - by Amir Reza

  Does anyone know a website that hosts javascripts on their page? I have a research project that needs to collect some RTT from all over the world and compare them together. I have written the javascript code for that but I do not have a high hit rate website to put it on to collect data. I know it is a little bit odd question to ask, but do you know any website or any trick that can help me? Note that the script would not do any harm to anybody! :-) Thanks, Decad is right, I basically need some people to put my script on their "high-hit rate" website ... so I can collect data from large number of clients... Of coarse, the script is run on the background with no harm to the page. It basically measures some RTT and submit it to a server. I already have some pages, but they barely got a hit from outside! Thanks,

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• Any valid reason to Nest Master Pages in ASP.Net rather than Inherit?

  - by James P. Wright

  Currently in a debate at work and I cannot fathom why someone would intentionally avoid Inheritance with Master Pages. For reference here is the project setup: BaseProject MainMasterPage SomeEvent SiteProject SiteMasterPage nested MainMasterPage OtherSiteProject MainMasterPage (from BaseProject) The debate came up because some code in BaseProject needs to know about "SomeEvent". With the setup above, the code in BaseProject needs to call this.Master.Master. That same code in BaseProject also applies to OtherSiteProject which is just accessed as this.Master. SiteMasterPage has no code differences, only HTML differences. If SiteMasterPage Inherits MainMasterPage rather than Nests it, then all code is valid as this.Master. Can anyone think of a reason why to use a Nested Master Page here instead of an Inherited one?

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• Commands in Task-It - Part 2

  Download Source Code NOTE: To run the source code provided you will need the recently released versions of Silverlight 4 and VisualStudio 2010, as well as WCF RIA Services. After downloading the source code be sure to set Commands2.Web as the StartUp Project and Default.aspx as the StartPage. In my last post, Commands in Task-It - Part 1, we looked at a very simple solution that demonstrated how a single command instance (SaveCommand) could be bound to two UI controls, a Button and a RadTreeViewItem. In this example we'll get more complex, binding a single command instance (MoveToCommand) will be bound to multiple RadMenuItems in a RadContextMenu that is tied to a RadGridView. This time we'll also set a separate CommandParameter on each RadMenuItem, so when the command is invoked, we will be able to use that parameter to determine what to do next. The user interface This screen ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• When should a bullet texture be loaded in XNA?

  - by Bill

  I'm making a SpaceWar!-esque game using XNA. I want to limit my ships to 5 active bullets at any time. I have a Bullet DrawableGameComponent and a Ship DrawableGameComponent. My Ship has an array of 5 Bullet. What is the best way to manage the Bullet textures? Specifically, when should I be calling LoadTexture? Right now, my solution is to populate the Bullet array in the Ship's constructor, with LoadTexture being called in the Bullet constructor. The Bullet objects will be disabled/not visible except when they are active. Does the texture really need to be loaded once for each individual instance of the bullet object? This seems like a very processor-intensive operation. Note: This is a small-scale project, so I'm OK with not implementing a huge texture-management framework since there won't be more than half a dozen or so in the entire game. I'd still like to hear about scalable solutions for future applications, though.

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• Storing lots of large strings with frequent "appends" and few reads

  - by Thiago Moraes

  In my current project, I need to store a very long ASCII string to each instance of a given object. This string will receive an 2 appends per minute and will not be retrieved so frequently. The worst case scenario is a 5-10MB string. I'll have thousands of instances of my object and I'm worried that storing all those strings in the filesystem would not be optimal, but I can't think of a better solution. Can anyone suggest an alternative? Maybe a key-value store? In this case, which one? Any other thoughts?

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• SSIS: Building SQL databases on-the-fly using concatenated SQL scripts

  - by DrJohn

  Over the years I have developed many techniques which help automate the whole SQL Server build process. In my current process, where I need to build entire OLAP data marts on-the-fly, I make regular use of a simple but very effective mechanism to concatenate all the SQL Scripts together from my SSMS (SQL Server Management Studio) projects. This proves invaluable because in two clicks I can redeploy an entire SQL Server database with all tables, views, stored procedures etc. Indeed, I can also use the concatenated SQL scripts with SSIS to build SQL Server databases on-the-fly. You may be surprised to learn that I often redeploy the database several times per day, or even several times per hour, during the development process. This is because the deployment errors are logged and you can quickly see where SQL Scripts have object dependency errors. For example, after changing a table structure you may have forgotten to change any related views. The deployment log immediately points out all the objects which failed to build so you can fix and redeploy the database very quickly. The alternative approach (i.e. doing changes in the database directly using the SSMS UI) would require you to check all dependent objects before making changes. The chances are that you will miss something and wonder why your app returns the wrong data – a common problem caused by changing a table without re-creating dependent views. Using SQL Projects in SSMS A great many developers fail to make use of SQL Projects in SSMS (SQL Server Management Studio). To me they are invaluable way of organizing your SQL Scripts. The screenshot below shows a typical SSMS solution made up of several projects – one project for tables, another for views etc. The key point is that the projects naturally fall into the right order in file system because of the project name. The number in the folder or file name ensures that the projects the SQL scripts are concatenated together in the order that they need to be executed. Hence the script filenames start with 100, 110 etc. Concatenating SQL Scripts To concatenate the SQL Scripts together into one file, I use notepad.exe to create a simple batch file (see example screenshot) which uses the TYPE command to write the content of the SQL Script files into a combined file. As the SQL Scripts are in several folders, I simply use several TYPE command multiple times and append the output together. If you are unfamiliar with batch files, you may not know that the angled bracket (>) means write output of the program into a file. Two angled brackets (>>) means append output of this program into a file. So the command-line DIR > filelist.txt would write the content of the DIR command into a file called filelist.txt. In the example shown above, the concatenated file is called SB_DDS.sql If, like me you place the concatenated file under source code control, then the source code control system will change the file's attribute to "read-only" which in turn would cause the TYPE command to fail. The ATTRIB command can be used to remove the read-only flag. Using SQLCmd to execute the concatenated file Now that the SQL Scripts are all in one big file, we can execute the script against a database using SQLCmd using another batch file as shown below: SQLCmd has numerous options, but the script shown above simply executes the SS_DDS.sql file against the SB_DDS_DB database on the local machine and logs the errors to a file called SB_DDS.log. So after executing the batch file you can simply check the error log to see if your database built without a hitch. If you have errors, then simply fix the source files, re-create the concatenated file and re-run the SQLCmd to rebuild the database. This two click operation allows you to quickly identify and fix errors in your entire database definition.Using SSIS to execute the concatenated file To execute the concatenated SQL script using SSIS, you simply drop an Execute SQL task into your package and set the database connection as normal and then select File Connection as the SQLSourceType (as shown below). Create a file connection to your concatenated SQL script and you are ready to go.   Tips and TricksAdd a new-line at end of every fileThe most common problem encountered with this approach is that the GO statement on the last line of one file is placed on the same line as the comment at the top of the next file by the TYPE command. The easy fix to this is to ensure all your files have a new-line at the end.Remove all USE database statementsThe SQLCmd identifies which database the script should be run against.  So you should remove all USE database commands from your scripts - otherwise you may get unintentional side effects!!Do the Create Database separatelyIf you are using SSIS to create the database as well as create the objects and populate the database, then invoke the CREATE DATABASE command against the master database using a separate package before calling the package that executes the concatenated SQL script.    

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• How to integrate the .gdf with a specific exe for Games Explorer

  - by Kraemer

  Hello, I want to create an installer for a game and after that an icon to be put in Games Explorer for Win Vista and Win 7. I have created the GDF (game definitions file), then build the script for project and obtained the .h, GDF and .rc files. But i can't compile using Visual Studio 2010 the .rc file into an executable to be used after that to create the installer. Some error is popping up after i set the executable path "Could not load file or assembly'Microsoft.VisualStudio.HpcDebugger.Impl, Version 10.0.0.0, Culture=neutral, PublickKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified." Any ideas what i'm doing wrong ? I need to mention that i've never worked before with GDF Editor and Visual Studio. Any answer would be highly appreciated.Thanks!

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• How to implement Cache in web apps?

  - by Jhonnytunes

  This is really two questions. Im doing a project for the university for storing baseball players statitics, but from baseball data I have to calculate the score by year for the player who is beign displayed. The background is, lets say 10, 000 users hit the player "Alex Rodriguez", the application have to calculate 10, 000 the A-Rod stats by years intead of just read it from some where is temporal saved. Here I go: What is the best method for caching this type of data? Do I have to used the same database, and some temporal values on the same database, or create a Web Service for that? What reading about web caching so you recommend?

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• How is time calculation performed by a computer?

  - by Jorge Mendoza

  I need to add a certain feature to a module in a given project regarding time calculation. For this specific case I'm using Java and reading through the documentation of the Date class I found out the time is calculated in milliseconds starting from January 1, 1970, 00:00:00 GMT. I think it's safe to assume there is a similar "starting date" in other languages so I guess the specific implementation in Java doesn't matter. How is the time calculation performed by the computer? How does it know exactly how many milliseconds have passed from that given "starting date and time" to the current date and time?

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• C library build system dependencies

  - by Ninefingers

  Hello all, This debate has cropped up on a mailing list for a project I'm involved in. Unfortunately we're quite a small bunch at the moment, so I want to ask a wider audience. We're writing a C library (for arbitrary precision arithmetic) and are investigating build systems. Currently we have a bash script in desperate need of work. I believe we can't use autotools etc due to licensing (bsd vs gpl). So I suggested we use a modern scripting language like python or perl. The question is: is having something like perl or python around at build time an unrealistic dependency on Unix-like platforms these days?

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• New VS2012 Book: Pro Application Lifecycle Management with Visual Studio 2012

  - by Jakob Ehn

  During the spring/summer I have been involved with reviewing a new book about Visual Studio 2012 ALM from Apress called “Pro Application Lifecycle Management with Visual Studio 2012” The book is written by a fellow Visual Studio ALM MVP Mathias Olausson and his colleague Joachim Rossberg. It is a very comprehensive book that covers both all aspects of ALM in general and also how to implement these practices with Visual Studio 2012. The book also has several chapters dedicated to measuring your improvements by using ALM assessments and metrics. Read more about the book here on Mathias blog: http://msmvps.com/blogs/molausson/archive/2012/07/17/book-project-pro-application-lifecycle-management-with-visual-studio-2012-completed.aspx You can pre-order the book here at Amazon: http://www.amazon.com/Application-Lifecycle-Management-Visual-Professional/dp/1430243449/ Check it out!

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• How can we stop GitHub from emailing too many people too much? [migrated]

  - by Michael Bishop

  I recently joined a research team that uses R and Git/GitHub. The team includes 4 full-time R programmers and 10 social scientists who only run simple analyses. I was told by one of the more experienced programmers on the project that they haven't found a way to use many of GitHub's tools for collaboration (bug reports, to-do lists, code comments, etc.) because they generate emails to everyone who is a contributor to the repo every time. This is incredibly puzzling to me, so I'd love to hear from someone that there are ways to adjust the email settings. I'd expect there would be multiple ways, so that individuals could opt-in or opt-out of certain emails, and also so contributors could explicitly choose whether certain people get certain emails or not. Is it possible to adjust these settings?

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• How can I put Fedora GUI onto Ubuntu?

  - by Dareleth

  Okay, I'm pretty new to Linux-based systems, so if I say something wrong or ask something dumb, please bear with me. I have a project for school that requires some extensive work inside of the latest version of Fedora including screenshots of rather specific things. The VM system at my school runs Fedora 20 like a snail high on paint fumes, and my laptop's VirtualBox doesn't recognize the ISO I got from the official Fedora site, so I feel like I'm out of alternatives aside from formatting over Ubuntu. I'd rather not do that, as I rather enjoy this distro. I am running Ubuntu 14.04 on my laptop. At my login screen, I have the much appreciated option of selecting between a couple of GUI's--specifically, Ubuntu, GNOME, and Cinnamon. I would like to get the Fedora GUI added to this list, but I don't know where to start or if it's even an option. Any and all help is appreciated.

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