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• Decrement all int values in Dictionary

  - by Jon

  I have a Dictionary<string,int> and I simply want to decrement the value in my dictionary by one. I have this but not sure if its best practice. foreach (KeyValuePair<string, int> i in EPCs) { EPCs[i.Key] = i.Value - 1; }

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• validates_associated not honoring :if

  - by James Ferguson

  I'm totally blocked on this. See this pastie for sample code: http://pastie.org/990040 The first test will fail. The user model validates an associated address model, but is only supposed to do it if a flag is true. In practice it does it all the time. What is going on?

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• Implementations of various data structures

  - by SEC

  Hi, I'm trying to practice my programming. What sort of projects would be helpful to try implimenting real life usage of various data structures? Thanks, SEC

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• Does java have a class that represents a timer?

  - by Eric

  I'd like a timer class that allows me to call: .start()   .getElapsedTime()   .stop()   .reset() Does Java have such a class, or do I need to use my own (which I've already written). From a best-practice point of view, I should use the Java class libraries classes if they exist, but I'm not sure whether this one does. Can anyone give me a link to the javadoc for this class, if it exists?

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• Should the function or the caller be resonsible for input validation?

  - by haudenschilt

  I'm doing a security audit on a fairly large php application and was wondering where I should include my user-input validation. Should I validate the data, then send the clean data off to the back-end functions or should I rely on each function to do it's own validation? Or even both? Is there any standard or best-practice for this sort of thing? Currently the app does both inconsistently and I'll like to make things more consistent.

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• I'm still learning OOP. Any tips on staying unbiased and pragmatic?

  - by marcdev

  I keep reading about defficiencies and issues with languages. Specifically, I'm learning PHP and Javascript, but I see it everywhere. This question arose while reading Javascript: The Good Parts and PHP Objects, Patterns and Practice. While understanding and avoiding easy pitfalls, is there a way I can learn the fundamentals of OOP and discover solid programming practices without overlooking important areas (or simply becoming jaded)? I'm sure I'll have plenty of opportunity to learn from mistakes!

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• What are the standard practices for throwing JavasScript Exceptions?

  - by T.R.

  w3schools says that exceptions can be strings, integers, booleans, or objects, but the example given doesn't strike me as good practice, since exception type checking is done through string comparison. Is this the preferred method of exception handling in JavaScript? Are there built-in exception types (like NullPointerException)? (if so, what are they, what kind of inheritance do they use, and are they preferred over other options?)

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• Should I name the files in my solution all lowercase for SEO?

  - by Scott

  I read that an SEO best practice is to use lowercase urls. Should I name my asp.net webforms project files lowercase as well? Visual Studio doesn't name default documents in new projects all lowercase. I'm not sure it matters since browsing to http://www.mysite.com/mypage.aspx will still work even if your page is named MyPage.aspx. Can somebody enlighten me on this?

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• Why save output until the end?

  - by user509006

  Very quick question about programming practices here: I've always used echo() to output HTML code to the user as soon as it was generated, and used ob_start() at the same time to be able to output headers later in the code. Recently, I was made aware that this is bad programming practice and I should be saving HTML output until the end. Is there a reason for this? What is it, and why isn't output buffering a good alternative? Thanks!

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• In C#, how do I know which exceptions to catch?

  - by user327918

  I've gotten in the habit of using a general catch statement and I handle those exceptions in a general manner. Is this bad practice? If so, how do I know which specific exceptions could be thrown and which ones do I catch?

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• How to make an input element with 5px fill an entire <td>?

  - by Bytecode Ninja

  I have a text input inside a <td> that has a padding of 5px; When setting its width to 100% it comes out of the boundaries of the <td> for 10px. Is there a way to make it fill the entire <td> (i.e. in practice its width should become 100% - 10px) without using JavaScript? Thanks in advance

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• Input field name starts with a number

  - by fire

  I have an input field whose name is an MD5 string e.g.: <input type="hidden" name="7815696ecbf1c96e6894b779456d330e" value="1"> Now I understand that having a number as the first letter in an input field name is generally bad practice, but are there any side-effects to this such as a certain browser won't send it in the POST request?

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• Default to-do list for a data-centric web application?

  - by Izmoto

  Say you have just embarked upon a new data-centric web application project, is there a to-do list of common best-practice things you tackle before getting to actually solve the business problem at hand ?

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• Any complete best book for learning A-Z of symbian and its API?

  - by Srinivasan__

  Is there any best books for learning Symbian and its complete API? Also, That book should have practice oriented approach for learning and it should also had the other variants such as UIQ, S60+? If you knew, any book satisfying the above, post it here?

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• Initialize an object in java

  - by harigm

  Is it the right Way we initialise the the object? I have a class Sample I want to initialise the Object in my Sample1 Class After intialisation I dont require to use the object of Sample Class. In that Case Can I initialise that object as new Sample(); instead of Sample s = new Sample(); if I am not going to use s anywhere in my Sample1 Class My question, is this a good practice to do that? will there be any after affects

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• how to organize country data?

  - by fayer

  how do i organize country data (countries, states and cities etc) in mysql? cause every country has 3 tables: countries, states and cities. should i have each country in separate set of tables or should i have them all in these 3 tables? if i have all of them in same tables, im afraid that the amount of rows will be huge cause i tend to have a lot of countries! what is best practice for this?

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• Selecting favourites from DB rails 3

  - by Richlewis

  I have a small app which has Users, Recipes, Ingredients and preparation models A user has many recipes, recipes belong to user and ingredients/preparation belongs to recipes. Now a user can view all recipes but I would like the option to add the particular recipe to a favourites list. Would I need to set a new DB to hold this and then link by associations or could I add a column to the recipe model called fav for example? Im looking for the best practice here or if someone has done this before and can offer any advice that would be appreciated

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• initiliase the object in java

  - by harigm

  is it the right Way we initialise the the object? I have a Class Sample(); I want to intialise the Object in my Sample1 Class After intialisation I dont require to use the object of Sample Class. In that Case Can I initialise that object as new Sample(); instead of Sample s = new Sample(), if I am not going to use s anywhere in my Sample1 Class My question, is this a good practice to do that? will there be any after affects

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• Without width printing format in C

  - by yCalleecharan

  Hi, in C if I have a printf statement containing say "%.2f", it says that the precision is 2 digits after the decimal place. I haven't explicitly specify the width. I have two questions: Is this good programming practice?; Is without specifying the width means that the width of the field will get adjusted automatically when printing the number, irrespective of the number of digits it contains? Thanks a lot...

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• Moving to 64-bit on OS X?

  - by ML

  Hi All, What is the best practice for moving to 64-bit on OS X? Using the 10.6 SDK and 64-bit intel as my SDK and target. I have int32 types to change Does OS X have an 'int64' or would one use a 'long long'? Where might I find a resource to available data types? What other issues are there?

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• ASP.NET Page.Cache versus Page.Application storage for data synchronization?

  - by jdk

  Both Page.Cache and Page.Application can store an application's "global" data, shared among requests and threads. How should one storage area be chosen over the other considering scenarios of data synchronization in the multi-threaded ASP.NET environment? Looking for best practice and experienced recommendation.

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• Why do we make a copy of final instance variable in a method in Java?

  - by PRK

  For instance: private final Object o; public void doSomething(){ final Object local = this.o; //access methods of local; } This practice is followed in lots of java classes (such as ArrayBlockingQueue). What's the benefit of this?

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• Returning a byte[] in WCF service

  - by acadia

  Is it a good practice to return a byte[] in a WCF service which will be invoked by many applications below is the code public byte[] GetDoc(string docParam) { byte[] doc; doc = GenerateDoc(docParam); } Thanks

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• What decryption should i use between my Android app and ASP.NET Webservice?

  - by RickardP

  I am searching a good way to encrypt and decrypt user authentication data between my Android app and my ASP.NET Webservice built in C#. I want to do a user registration on my Android app and send the authentication to the back-end server that is a ASP.NET Webservice built in C# and then every time the app calls the webservice it should send a hashed string with authentication information so webservice now what user it is. What is the best practice for this and have i missed something, give me some ideas please!

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• MAMP Mysql in Terminal

  - by bharathrc

  Hello guys, I've installed MAMP on my MacBook PRO Leopard OS. Phpmyadmin is working fine but I would like to use the terminal or bash to practice MySQL. I seem to have a problem with it. When I say: "mysql -h localhost -u root -p" / "mysql -h localhost -u root", it gives the following error. ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES/NO) Please suggest any solutions possible! Thanx in advance. :)

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