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Creating a segue programmatically
I have a common UIViewController that all my UIViewsControllers extend to reuse some common operations.
13 Answers
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Why do we need Abstract factory design pattern?
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All of these examples describe the Factory Method Pattern, because all of them return a single product interface. None of these is an Abstract Factory Pattern, because none of them produce a family of related product interfac...
Capistrano - clean up old releases
Usually when using capistrano, I will go and manually delete old releases from a deployed application. I understand that you can run cap deploy:cleanup but that still leaves 5 releases. Is this it's intended purpose? Is there another way to cleanup old releases to just 1 previous deploy?
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Discard all and get clean copy of latest revision?
...g update -r MY_BRANCH -C
The -C flag tells the update command to discard all local changes before updating.
However, this might still leave untracked files in your repository. It sounds like you want to get rid of those as well, so I would use the purge extension for that:
hg pull
hg update -r M...
C# Class naming convention: Is it BaseClass or ClassBase or AbstractClass
...e, System.Web.SessionState.SessionStateStoreProviderBase.
But by no means all abstract base classes in the Framework follow this convention (e.g. System.Data.Common.DbParameter, System.Data.Common.DbCommand).
Personally I would avoid using the suffix unless I wanted to emphasize the fact that it's...
Get Visual Studio to run a T4 Template on every build
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add TextTransform.exe to your %PATH%
created a batch file named transform_all.bat (see below)
create a pre-build event "transform_all ..\.."
transform_all.bat
@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
:: set the working dir (default to current dir)
set wdir=%cd%
if not (%1)==() set wdir=%1
:: ...
Java8: Why is it forbidden to define a default method for a method from java.lang.Object
...bviously a good idea" until you start digging and you realize that its actually a bad idea.
This mail has a lot on the subject (and on other subjects too.) There were several design forces that converged to bring us to the current design:
The desire to keep the inheritance model simple;
The ...
Purpose of “consider_all_requests_local” in config/environments/development.rb?
...useful error message that includes line numbers and a backtrace. consider_all_requests_local allows your app to display these developer-friendly messages even when the machine making the request is remote.
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How to run a shell script in OS X by double-clicking?
... to select terminal you need to switch from "Recommended Applications" to "All Applications". (The Terminal.app application can be found in the Utilities folder)
NOTE that unless you don't want to associate all files with this extension to be run in terminal you should not have "Always Open With" c...
Computational complexity of Fibonacci Sequence
...ll have depth n and intuitively figure out that this function is asymptotically O(2n). You can then prove your conjecture by induction.
Base: n = 1 is obvious
Assume T(n-1) = O(2n-1), therefore
T(n) = T(n-1) + T(n-2) + O(1) which is equal to
T(n) = O(2n-1) + O(2n-2) + O(1) = O(2n)
However, as ...