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Cache Invalidation — Is there a General Solution?
...'s control.
If you have an idempotent function from a, b to c where, if a and b are the same then c is the same but the cost of checking b is high then you either:
accept that you sometime operate with out of date information and do not always check b
do your level best to make checking b as fast...
Why are C character literals ints instead of chars?
...ar) == 1 . This makes intuitive sense, since 'a' is a character literal, and sizeof(char) == 1 as defined by the standard.
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Team Build Error: The Path … is already mapped to workspace
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Use the command line utility TF - Team Foundation Version Control Tool (tf).
You can get a list of all workspaces by bringing up a Visual Studio Command Prompt then changing to your workspace folder and issuing the following commands:
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Xcode suddenly stopped running project on hardware: “Could not launch xxx.app: .. No such file..” [c
...able to run my app, it started directly after I deleted it from the device and attempted to re-install by rerunning it in Xcode (something I've done hundreds of times before).
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Confused about Service vs Factory
As I understand it, when inside a factory I return an object that gets injected into a controller. When inside a service I am dealing with the object using this and not returning anything.
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Performing a Stress Test on Web Application?
In the past, I used Microsoft Web Application Stress Tool and Pylot to stress test web applications. I'd written a simple home page, login script, and site walkthrough (in an ecommerce site adding a few items to a cart and checkout).
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Collapse sequences of white space into a single character and trim string
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OS X 10.7+ and iOS 3.2+
Use the native regexp solution provided by hfossli.
Otherwise
Either use your favorite regexp library or use the following Cocoa-native solution:
NSString *theString = @" Hello this is a long ...
How to capitalize the first character of each word in a string
...t into Java that capitalizes the first character of each word in a String, and does not affect the others?
51 Answers
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Find and replace - Add carriage return OR Newline
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Make sure "Use: Regular expressions" is selected in the Find and Replace dialog:
Note that for Visual Studio 2010, this doesn't work in the Visual Studio Productivity Power Tools' "Quick Find" extension (as of the July 2011 update); instead, you'll need to use the full Find and Repl...
RSpec: describe, context, feature, scenario?
... context , feature , scenario : What is the difference(s) among the four and when do I use each one?
3 Answers
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