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  • Recommended Reading for Polishing JavaScript coding style?

    - by wml653
    I've been coding in JavaScript for a while now and am fairly familiar with some of the more advanced coding features of the language (closures, self-executing functions, etc). So my question is, what advanced books/blogs/or anything else would be recommended to help tighten up my coding style? For example, recently I was coding something similar to: var x = ['a', 'b', 'c']; var exists = false; for(var i = 0; i < x.length; i++){ exists = x[i] === 'b' ? true : exists; } But found that the following condensed code would work better: var y = {'a':'', 'b':'', 'c':''}; var exists = 'b' in y; Both store the same value in 'exists', but the second is less common, but much cleaner. Any suggestions for where I should go to learn more tricks like this?

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  • Units in tile world

    - by Vilzow
    I've started to make a 2D sidescroller, the camera and world rendering works as I expect, but now comes the physics part of world. What I need is that one tile in x direction (or y direction) should correspond to 1 meter. Since I have a variable time step (android mobile game), I can't figure it out, since the timing and velocity always will be dependent of the device. So, is there any good way to make one tile to correspond 1 meter? This would be good, otherwise the physics implementation would later be weird.

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  • Precise pangolin won't install

    - by Percival Júnior
    I've been an ubuntu user since first release but now I can't install precise beta 2 32bits and neither 64. Tried so many times, already download nighly isos but nothing. 11.10 installs smoothly (usint it). My hardware is a samsung notebook 4gb of ram.., 25 gb partition for precise. I'm gonna tell you what actually happens... I boot from usb driver and I choose my language (portuguese - brazilian) choose partition till there everything is normal. But when I Put my name user and password and give NEXT the screen to choose my region appears a click Next again and at this point I get STUCK !!! NOTHING HAPPENS. I've waited for hours and all the system freezes. When I try to reboot,, my grub is gone. Thanks for the help.

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  • Which is the next dominant programming paradigm? [closed]

    - by Kugathasan Abimaran
    What is the next programming paradigm when OOP get lost in the market? Or else will OOP be for ever? What is your advise for the future developers? To which paradigm should we aware of? Because, before OOP, structured programming paradigm is there with C. Don't close it Please, because I need to aware, which paradigm have the ability to withstand in future? Aspect-oriented programming. Declarative programming. Functional programming. Object-oriented programming. Any Others? This describes programming paradigm according to their kernel language.

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  • Google I/O 2012 - Android WebView

    Google I/O 2012 - Android WebView Nicolas Roard Hundred of thousands of Android applications use WebView to display HTML content. In Android 4.0 it's hardware-accelerated, which allows support for HTML5 features such as inline video, CSS 3d, CSS animations, and overflow elements. This talk will give an overview of the underlying implementation in ICS, explain how to best take advantage of WebView in your application, and cover best practices for high-performance HTML code. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 83 3 ratings Time: 52:04 More in Science & Technology

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  • Recommended 2D Game Engine for prototyping

    - by Thomas Dufour
    What high-level game engine would you recommend to develop a 2D game prototype on windows? (or mac/linux if you wish) The kind of things I mean by "high-level" includes (but is definitely not limited to): not having to manage low-level stuff like screen buffers, graphics contexts having an API to draw geometric shapes well, I was going to omit it but I guess being based on an actual "high-level" language is a plus (automatic resource management and the existence a reasonable set of data structures in the standard library come to mind). It seems to me that Flash is the proverbial elephant in the room for this query but I'd very much like to see different answers based on all kinds of languages or SDKs.

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  • CLR via C# - first post of many!

    - by TATWORTH
    I am currently reading CLR via C# ISBN 978-0-7356-2704-8. Whilst quite correctly described by the publisher as a "Deep Dive", this is a book that C# developers with 6-18 months plus experiance ought to read. Certainly any serious Microsoft programming shop ought to have a copy.  For our VB.NET bretheren, a book of this quality is a good excuse to learn C#. (And before you ask, my favourite language of C# and VB.NET is the one that gets me the next contract!) When I started programming 31 years ago I went through IBM 360 Orientation - this gave me an comprehension of what worked best at the machine code level - this is the first book I have found that explains the the working of the Dot Net framework to explain why particular choices are good, This is my first blog post here. In the coming weeks, I intend to: Carry on with my review of CLR via C# and bring out practical points from that work. Post details of useful utilities Post some "Tales from the coal face.."

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  • What is MVC, really?

    - by NickC
    As a serious programmer, how do you answer the question What is MVC? In my mind, MVC is sort of a nebulous topic — and because of that, if your audience is a learner, then you're free to describe it in general terms that are unlikely to be controversial. However, if you are speaking to a knowledgeable audience, especially an interviewer, I have a hard time thinking of a direction to take that doesn't risk a reaction of "well that's not right!...". We all have different real-world experience, and I haven't truly met the same MVC implementation pattern twice. Specifically, there seem to be disagreements regarding strictness, component definition, separation of parts (what piece fits where), etc. So, how should I explain MVC in a way that is correct, concise, and uncontroversial?

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  • Good practices when writing a parser for a standard file format (such as ePub)

    - by J-F L-R
    I am considering writing an Android reader software that can read ePubs and display them. I checked the ePub standard documents. However, these contain a lot of information. So I am wondering what is the process of implementing a standard for a file format. What are the steps to get a working implementation without passing by parts of the standard? Are there any best practices? Also, is it even possible to program this alone in a reasonable time? From what I have already found out, ePub is basically a zip archive. That means I could probably use zlib to decompress it. The content is in XHTML and CSS, so I believe it should be possible to display it in a WebView. The parts that are missing are writing the code that can read the metadata and manage the non-standard XHTML extensions.

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  • Immutable design with an ORM: How are sessions managed?

    - by Programmin Tool
    If I were to make a site with a mutable language like C# and use NHibernate, I would normally approach sessions with the idea of making them as create only when needed and dispose at request end. This has helped with keeping a session for multiple transactions by a user but keep it from staying open too long where the state might be corrupted. In an immutable system, like F#, I would think I shouldn't do this because it supposes that a single session could be updated constantly by any number of inserts/updates/deletes/ect... I'm not against the "using" solution since I would think that connecting pooling will help cut down on the cost of connecting every time, but I don't know if all database systems do connection pooling. It just seems like there should be a better way that doesn't compromise the immutability goal. Should I just do a simple "using" block per transaction or is there a better pattern for this?

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  • Concept behind SHA-1 Checksum

    - by Vishwas Gagrani
    What's the basis behind SHA-1 or SHA-2 or other Checksum algorithms? I read about it here http://en.wikipedia.org/wiki/SHA-1#Data_Integrity But I am still wondering about an answer in a layman's language. Can I understand it as a very, very compressed code that can be translated back into original data? Let's say, I have a letter written in notepad. Then the whole of my 1 A4 page size data can be converted into something like this "9b90417b6a186b6f314f0b679f439c89a3b0cdf5". So whenever I want my original data back, I can convert this back into original data? I am very sure that I am wrong here, because it is weird how data that itself contains combination of letters and numbers can be represented by smaller set of letters and numbers. Illogical! Then, what's the basic?

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  • Is having your own website important?

    - by Josh K
    How necessary or important is it? I try to keep a running list of blogs or sites to follow, but a lot of the time I pull up someone's profile and notice there isn't anything there. Is it really important? I understand are different levels of programming (from C/C++ system programmers to Rails and even Haskell and J) and not everyone works in a language easily worked with for web based applications. Not everything is web-centric, however with the advent of many popular and sometimes free services I don't think it's unreasonable to expect a majority of programmers to have a personal site.

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  • How to add a daemon to a quickly project

    - by darkrex1986
    Currently I'm developing an application with quickly which is divided in two parts: A graphical UI where the user could configure some things, and a daemon which do the most work in the background. I started with the UI, to create some windows for settings and so on. Now I want to start coding the daemon, but I have no clue how to implement the daemon in my quickly project. Could I simply paste the files of the daemon in project folder or is there an implementation method for adding new files to a quickly project? Or do I have to create a new project and merge them together?

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  • Google I/O 2012 - Making Good Apps Great: More Advanced Topics for Expert Android Developers

    Google I/O 2012 - Making Good Apps Great: More Advanced Topics for Expert Android Developers Reto Meier In a follow-up to last year's session, I'll demonstrate how to use advanced Android techniques to take a good app and transform it into a polished product, without being a resource hog. Features advanced coding tips and tricks, bandwidth-saving techniques, implementation patterns, exposure to some of the lesser-known API features, and insight into how to minimize battery drain by ensuring your app is a good citizen on the carrier network. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 2193 69 ratings Time: 58:35 More in Science & Technology

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  • Why would I want to use CRaSH?

    - by Adam Tannon
    Justed stumbled across CRaSH and although it looks mighty interesting, I'm wondering why a Java developer should invest time & energy into learning (yet another) shell language. What sort of standard- and cool-applications can CRaSH be used for? Is this like a Groovy-version of Jython? I guess, when the dust settles, I'm looking for CRaSH's "wow" factors. I'm sure they're there, but after spending ~20 minutes perusing the documentation I'm just not seeing them. Thanks in advance!

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  • How much code do you write everyday, *at work*?

    - by Aerovistae
    I'm graduating college, about to start a junior software engineering position, and I've been wondering how much I'm going to be expected to do on what kind of timeline. I mean, in python I can write maybe 500 lines in 8 hours. In C, maybe 200 lines in 8 hours. And that's a big maybe. (I'm f#$*ing terrible with C.) Other languages are somewhere in between. I don't even know if that's ridiculously slow or normal or even good, hence the question. How much code do you write a day? It would be helpful to specify what language/technology you're using, and to make note if there are big differences between them like with myself.

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  • Clarification on the Strategy Pattern

    - by Holly
    I've just been reading through some basic design patterns, Could someone tell me if the term "strategy pattern" only applies if your implementing a completely abstract interface? What about when your children (concretes?) inherit from a parent class (the strategy?) with some implemented methods and some virtual and/or abstract functions? Otherwise the rest of the implementation, the idea that you can switch between different children at run time, is identical. This is something i'm quite familiar with, i was wondering if you would still call it the Strategy Pattern or if that term only applies to using an interface. Apologies if this question is not appropriate! Or if this is just nitpicking :) I'm still learning and i'm not really sure if design patterns are quite heavily defined within the industry or just a concept to be implemented as you like.

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  • Living the Amazon Life [Video]

    - by Asian Angel
    Amazon has an amazing selection of products available to satisfy your needs and desires, but what if their services were to expand even more? This humorous video looks at what it might be like if you could literally get anything you wanted through a unique assortment of Amazon sister-sites! Note: Video contains some language that may be considered inappropriate. AMAZON LIFE [via Geeks are Sexy] What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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  • How much configurability to give to users regarding concurrency?

    - by rwong
    This question is a narrowing-down of these related questions: How much effort should we spend to programming for multiple cores? Concurrency: How do you approach the design and debug the implementation? Given that each user's computers may have different performance characteristics with respect to calculations, memory, disk I/O bandwidth and network I/O bandwidth, and that it is difficult to implement an automated self-tuning system in your software, how much configurability should we give to the end-users so that they can find ways (by trial-and-error?) to improve our software's efficiency? If we give users the ability to change these settings, how do we give visual feedback to users so they can measure the performance changes?

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  • Use a GUI designer or write it yourself for the desktop?

    - by TheLQ
    Writing a GUI for a program has always been a daunting, depressing, and frustrating task. It doesn't matter which language, its extremely hard to get what I want. Especially in compiled languages like Java where a change takes a minute or two to build. The result is that I increasingly use GUI designers for some of my project. Sure their is some spagetti code, but as long as I leave the configuration and a note saying "This was designed with X" I have no qualms with doing this. Is this an okay way to design a GUI? More importantly, is this what most people do? Or is the common way to just sit down and write it out?

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  • I Need Help With A Game (Well The API)! [closed]

    - by user1758938
    I'm not "sure" which API (or language) I should use for a little 3D FPS game I'm gonna make although I don't have helpers lol. Anyway I'm ok with Java, C# and C++ but I need a good setup (easy to use) with the tools I need to make the game. I tried things like XNA but I want to check other options first because I don't like how it makes a installer and stuff, it's really annoying. I Need A API That Can Do These Things: 3D Rendering Input Sound And If It's Not Too Much To Ask Some Cool Shaders, Dynamic Lighting And A 3D Sound System Im "Ok" If I Have To Use Multiple APIs To Do This But Please Help Me!

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  • Hello world

    - by tikrimi
    Hello all bloggers and readers of Geekswithblogs.net. To introduce myself, my name is Christopher Bonnevault, I am a consultant for Valtech. I work with the platform. Net since 2002 mostly in Asp.Net. I am very interested by agile methods, and this blog will be an opportunity for me to share with you some feedback about the different tools that I use in my projects. English is not my native language, so I am sorry in advance if my posts are not always understandable.

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  • How important is it that you know the C++ standard?

    - by Nim
    I did try searching, but I did not see a similar question (either that or my search terminology was incorrect - if so, feel free to close). I am an avid user of SO, and I notice that there are lots of references to the C++ standard in discussions and answers - and I have to admit, I have never read this particular document, the language makes my eyes hurt... So, the question is, can a C++ developer really code for a living without ever having read this document? Is it really important for us mere mortals who are not in the business of writing compilers?

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  • How does URL Rewriting affect SEO?

    - by Costa
    The following paragraph is from SEO Google Guide Google is good at crawling all types of URL structures, even if they're quite complex, but spending the time to make your URLs as simple as possible for both users and search engines can help. Some webmasters try to achieve this by rewriting their dynamic URLs to static ones; while Google is fine with this, we'd like to note that this is an advanced procedure and if done incorrectly, could cause crawling issues with your site. What makes URL re-writing implementation incorrect for GoogleBot? I am using Asp.net 3.5 framework.

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  • 2D game big background images for maps

    - by WhiteCat
    Update: this question is general, not specific to Sprite Kit or a single language/platform. I'm toying with Sprite Kit with an idea to make a 2D side-scroller. Now the backgrounds for the maps are going to be hand-drawn and surely bigger than retina display, so the maps could span more than 1 screen in both axis. I imagine loading such a huge image could mean trouble and I don't plan to use tiling. I'm not sure how Sprite Kit splits images bigger than max texture size, if it does. I could split the images myself and use more sprites for each part of the background. What is the usual way to handle this?

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