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  • rails + compass: advantages vs using haml + blueprint directly

    - by egarcia
    I've got some experience using haml (+sass) on rails projects. I recently started using them with blueprintcss - the only thing I did was transform blueprint.css into a sass file, and started coding from there. I even have a rails generator that includes all this by default. It seems that Compass does what I do, and other things. I'm trying to understand what those other things are - but the documentation/tutorials weren't very clear. These are my conclusions: Compass comes with built-in sass mixins that implement common CSS idioms, such as links with icons or horizontal lists. My solution doesn't provide anything like that. (1 point for Compass). Compass has several command-line options: you can create a rails project, but you can also "install" it on an existing rails project. A rails generator could be personalized to do the same thing, I guess. (Tie). Compass has two modes of working with blueprint: "basic" and "semantic" usage. I'm not clear about the differences between those. With my rails generator I only have one mode, but it seems enough. (Tie) Apparently, Compass is prepared to use other frameworks, besides blueprint (e.g. YUI). I could not find much documentation about this, and I'm not interested on it anyway - blueprint is ok for me (Tie). Compass' learning curve seems a bit stiff and the documentation seems sparse. Learning could be a bit difficult. On the other hand, I know the ins and outs of my own system and can use it right away. (1 point for my system). With this analysis, I'm hesitant to give Compass a try. Is my analysis correct? Are Am I missing any key points, or have I evaluated any of these points wrongly?

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  • Core Data vs. SQLitePersistentObjects

    - by Macatomy
    I'm creating an iPhone app and I'm trying to choose between 2 solutions for a persistent store. Core Data, or SQLitePersistentObjects. Basically, all my app needs is a way to store an array of model objects and then load them again to display in a UITableView. Its nothing too complicated. Core Data seems to have a much higher learning curve than the simple to use SQLitePersistentObjects. Are there any obvious benefits of using Core Data over SQLitePersistentObjects in my case?

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  • Python 2 vs Python 3 and Tutorial

    - by MR-J
    Hey guys. I am 12 years old and I have had a small amount of experience with BASIC. I am thinking about learning Python, but I’m not sure if I should learn the 2.6 version or the 3.0 version. I don’t really care about the support for libraries or anything along those lines quite yet. I was wondering if it is easier to code in 3.0 than 2.6. And is it more fun and productive? I would also appreciate it if you could point me in the right direction for a simple yet complete tutorial that is easy to understand and possible teaches Object Oriented Programing. I don’t really care if it teaches OOP or not. One more thing; if I do learn python, is it possible to easily compile a python source code file into a 'stand-alone' .exe file for Windows? I really liked that functionality in BASIC. Thanks!!!!

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  • Python vs Ruby Top Sites

    - by Steve
    Hi, I was just trying to find some comparison of the existing python web frameworks and ruby frameworks. There are few promising frameworks in python but I was not able to find a top 100 site using python except for google, which uses python extensively. Python has great frameworks but I am not able to find a really popular sites using python. Definitely most of the site would use python for background processing and stuff. On the other hand, ruby on rails has a few sites like twitter,hulu,yellowpages,scribd are present in top 100 sites. Can you mention some really popular sites using either of these languages.

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  • CS Master's Degree Project vs. Thesis options

    - by Nwosh
    I'm doing a master's degree in computer science, and I'm currently at the point where I have to decide between the thesis and non-thesis options offered by my university. The thesis option was my first choice, it entails taking less courses but tends to take more time doing your thesis. The non-thesis option involves taking more coursework, taking a comprehensive exam, and doing a project in one semester with a faculty member. I'd like to pursue a PhD degree eventually (although not right away, I want to get some years of professional experience first), and I heard that having demonstrated the ability to work on a thesis helps a lot with admission (like: not doing thesis raises questions and suggests not being interested in research) and that the experience itself is very good. At the same time, almost everyone I know who did a thesis at my university took a long time (2-3 years), in theory it could be done in 1.5 years. I'm a part time student and I don't really want to spend so much time just getting a master's degree, I could still publish a few papers while working on the project option and I'd be done in a year or so, additionally, I heard having a master's degree with a project and more coursework is more desirable for the industry. So, when applying for a PhD degree in CS at some of the better universities, would the time spent working on the master's thesis help in getting me accepted? Or should I opt for the non-thesis option and hope that the extra coursework and publishing some papers would make up for not working on a thesis?

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  • Spring roo Vs (Wicket and Spring)

    - by Ketan Khairnar
    Spring roo is new framework and I found it very interesting. I have been working on web application for last 3-4 years and Always found JSPs are hard to maintain across teams if everyone is not disciplined enough about separation of markup and serverside logic. I have used JackBe/BackBase in last projects and I enjoyed xml templates working as views. This was much better than JSPs. But I couldnt automate webtests through selenium for backbase. I would be surely using Spring MVC (-view), Hibernate on the backend. I found Wicket as good alternative. Have you used wicket along with Spring and what was your experience?

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  • Java equivalent to VS solution file

    - by Chris
    I'm a C# guy trying to learn Java. I understand the syntax and the basic architecture of the Java platform, and have no problem doing smaller projects myself, but I'd really like to be able to download some open source projects to learn from the work of others. However, I'm running into a stumbling block that I can't seem to find any information on. When I download an open source .NET project, I can open the .sln file with visual studio and everything just loads. Sure, there's occasionally a missing reference or something, but there's really very little configuration required to get things going. I'm not sensing the same ease of use with Java. I'm using eclipse at the moment, and it feels like for every project I have to create a brand new Eclipse project using "create from existing source", and almost nothing compiles properly without significant reconfiguration. In the case of web projects, it's even worse, because Eclipse doesn't appear to support creating a web project from existing source. I have to create a standard Java project from source, then then apparently modify the project file to include the bindings for the web toolkit stuff to work properly. Assuming I want to be able to contribute to a project later on, I shouldn't have to be making such drastic changes to the file structure to get my IDE to a workable state. What am I missing?

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  • "Android 2.x" vs "Google APIs" for Android AVD Setup

    - by Adam Haile
    In the Android AVD manager (or a new project for that matter), it will give two options for the same API level. For example, for Level 7 (2.1) it will show "Google APIs - Level 7" and "Android 2.1 - Level 7" in the selection drop down. What, if any, is the actual difference between these two and why would I want one over the other?

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  • WCF VS. Sockets

    - by kite
    Hello, I would like to know which of WCF or .NET Sockets is the more efficient and the more recommended in a game developpment scenario. Here are the different parts of the game : -a client/server communication to play on the internet -peer to peer on local network. I would like to know which technology you would use on these parts (wcf on both, socket on both, wcf on one and socket on the other...) and why, if possible. The game involved doesn't require a high communication frequency (3-4 per second is enough). Thanks, KiTe

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  • C# collection/string .Contains vs collection/string.IndexOf

    - by Daniel
    Is there a reason to use .Contains on a string/list instead of .IndexOf? Most code that I would write using .Contains would shortly after need the index of the item and therefore would have to do both statements. But why not both in one? if ((index = blah.IndexOf(something) = 0) // i know that Contains is true and i also have the index

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  • TypeDescriptor.GetProperties() vs Type.GetProperties()

    - by Eric
    Consider the following code. Object obj; PropertyDescriptorCollection A = TypeDescriptor.GetProperties(obj); PropertyInfo[] B = obj.GetType().GetProperties(); // EDIT* I'm trying to understand the difference between A and B. From what I understand TypeDescriptor.GetProperties() will return custom TypeDescriptor properties, where as Type.GetProperties() will only return intrinsic "real" properties of the object. Is this right? If obj doesn't have any custom TypeDescriptor properties then it just defaults to also returning the literal intrinsic properties of the object. * Original second line of code before EDIT (had wrong return value): PropertyDescriptorCollection B = obj.GetType().GetProperties();

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  • asp.net controls vs html element security?

    - by Eyla
    In general, If I have a choice when developing a web site to use html elements or asp.net controls which one is better to use if my website is interactive with server side operations such as accessing database. Is it more secure to use asp.net controls or does not matter. On other words, is it more secure to use asp.net controls instead of html element to deliver data or receive data from/to server side or no differences?

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  • text indexes vs integer indexes in mysql

    - by imanc
    Hey, I have always tried to have an integer primary key on a table no matter what. But now I am questioning if this is always necessary. Let's say I have a product table and each product has a globally unique SKU number - that would be a string of say 8-16 characters. Why not make this the PK? Typically I would make this field a unique index but then have an auto incrementing int field as the PK, as I assumed it would be faster, easier to maintain, and would allow me to do things like get the last 5 records added with ease. But in terms of optimisation, assuming I'd only ever be matching the full text field and next doing text matching queries (e.g. like %%) can you guys think of any reasons not to use a text based primary key, most likely of type varchar()? Cheers, imanc

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  • Iteration speed of int vs long

    - by jqno
    I have the following two programs: long startTime = System.currentTimeMillis(); for (int i = 0; i < N; i++); long endTime = System.currentTimeMillis(); System.out.println("Elapsed time: " + (endTime - startTime) + " msecs"); and long startTime = System.currentTimeMillis(); for (long i = 0; i < N; i++); long endTime = System.currentTimeMillis(); System.out.println("Elapsed time: " + (endTime - startTime) + " msecs"); Note: the only difference is the type of the loop variable (int and long). When I run this, the first program consistently prints between 0 and 16 msecs, regardless of the value of N. The second takes a lot longer. For N == Integer.MAX_VALUE, it runs in about 1800 msecs on my machine. The run time appears to be more or less linear in N. So why is this? I suppose the JIT-compiler optimizes the int loop to death. And for good reason, because obviously it doesn't do anything. But why doesn't it do so for the long loop as well? A colleague thought we might be measuring the JIT compiler doing its work in the long loop, but since the run time seems to be linear in N, this probably isn't the case.

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  • Cost of Design vs Development

    - by Marco
    I usually develop content management solutions in php, I work with designers that create the front end (html & css) and I usually develop the backend (php & mysql) of said cms. I know that the cost of the website may vary depending of the complexity of the html or the backend, but taking as reference a very basic website, what percentage of the cost should go to design and what percentage should go to development. I want to make clear that I as the developer i'm in charge of all the effects and animations of the websites using some of the javascript frameworks, not the designer. I just want to know what´s the fair share for me and for the designer.

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  • Actual table Vs. Div table

    - by omfgroflmao
    This <table> <tr> <td>Hello</td> <td>World</td> </tr> </table> Can be done with this: <div> <div style="display: table-row;"> <div style="display: table-cell;">Hello</div> <div style="display: table-cell;">World</div> </div> </div> Now, is there any difference between these two in terms of performance and/or render speed or they're just the same?

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  • "Push" linq vs reactive framework

    - by Benjol
    (Once again exposing the depths of my ignorance here by combining two concepts which I haven't grokked) I read here about the Reactive framework being a 'Push' model compared to Linq's 'Pull' model. This reminded me of reading an article about 'Push' Linq. Is there really any similarity between these two 'frameworks'? UPDATE Since I asked this question, Jon Skeet has asked it too, here are his first and second impressions.

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  • Manual testing Vs Automated testing

    - by mgj
    Respected all, As many know testing can be mainly classified into manual and automated testing. With regard to this certain questions come to mind. Hope you can help... They include: What is the basic difference between the two types of testing? What are the elements of challenges involved in both manual and automated testing? What are the different skill sets required by a software tester for manual and automated testing respectively? What are the different job prospects and growth opportunities among software testers who do manual testing automated testing respectively? Is manual testing under rated to automated testing in anyway(s)? If yes, kindly specify the way. How differently are the manual testers treated in comparison to automated testers in the corporate world?( If they truly are differentiated in any terms as such ) I hope you can share your knowledge in answering these questions.. Thank you for your time..:)

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  • Core Data iPad/iPhone BLOBS vs File system for 20k PDFs

    - by jamone
    I'm designing an iPad/iPhone app using core data. The main focus of the app is sorting and viewing up to 20,000 PDFs They are ~200KB each. Typically its best to not store BLOBS in a DB, but for desktop systems I've typically seen it said that if the blobs are < 1 MB then its fine to use the DB. Any considerations I should take into count? If I store them in the file system can I store them all in one directory and not have performance issues (I won't need to ever get a directory list since I'd store each's path in the DB)? Should I divide them among a handful of directories? If so is there a good rule on # of files per dir?

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  • CALayer drawInContext vs addSublayer

    - by Michael
    How can I use both of these in the same UIView correctly? I have one custom subclassed CALayer in which I draw a pattern within drawInContext I have a another in which I set an overlay PNG image as the contents. I have a third which is just a background. How do I overlay all 3 of these items? [self.layer addSublayer:bottomLayer]; // this line is the problem [squaresLayer drawInContext:viewContext]; [self.layer addSublayer:imgLayer]; The other 2 by themselves draw correctly if I do them in that order. No matter where I try and put bottomLayer, it always prevents squaresLayer from drawing. The reason I need 3 layers is I intend to animate the colors in the background and custom layers. The top layer is just a graphical overlay.

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  • elgg vs dolphin

    - by bugspy.net
    I need to decide whether to implement a social site using one these (any other recommendations? maybe some framework under python?) Which one is better? I don't want to use it out of the box but to do to lots of customizations and coding upon the framework..

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  • using second level cache vs pushing objects into the session

    - by AhmetC
    I have some big entities which are frequently accessed in same session. For example, in my application there is a reporting page which consist of dynamically generated chart images. For each chart image on page, client makes requests to corresponding controller and the controller generates images using some entities. I can either use asp.net's session dictionary for "caching" those entities or rely on nhibernate's second level cache support with using cached queries for example. What is your opinion? By the way I will use shared hosting, is second level cache hosting friendly? Thanks.

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  • LWUIT Deadlock (lwuit dialog VS System dialog)

    - by Ramps
    Hi, I have a deadlock problem when I try to make some I/O operations that needs user permission. When user click the button I start a new thread which is responsible for performing IO operations, and I display lwuit "please wait" dialog. Dialog is dismissed by IO thread from callback method. Problem is that, when system dialog appears (asking for user permission ) on top of lwuit dialog - deadlock occurs. I assume that this is because dialog.show() method blocks main thread (EDT), so it's impossible to dismiss system dialog, when lwuit dialog is behind it. Anyone managed to solve this problem? Here is the simplified code, hope it is clear enough: protected void actionPerformed(ActionEvent evt, int id) { switch (id) { case ID_FRIEND: MyRunnableWithIoOperation r = new MyRunnableWithIoOperation(this); new Thread(r).start(); //run the thread performing IO operations Command cmd = mWaitDialog.showDialog(); // show the "please wait" dialog ...//handle cancel }//end switch } /* method called from MyRunnableWithIoOperation, when operation finished*/ public void myCallbackMethod(){ mWaitDialog.dispose(); // } I tried to start my IO thread by calling Display.getInstance().invokeAndBlock( r ), but with no luck. In such case, my "wait dialog" doesn't show up.

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