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How to find list of possible words from a letter matrix [Boggle Solver]

Lately I have been playing a game on my iPhone called Scramble. Some of you may know this game as Boggle. Essentially, when the game starts you get a matrix of letters like so: ...
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Selectors in Objective-C?

First, I'm not sure I really understand what a selector is. From my understanding, it's the name of a method, and you can assign it to a class of type 'SEL' and then run methods such as respondToSelector to see if the receiver implements that method. Can someone offer up a better explanation? ...
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How do I check if a property exists on a dynamic anonymous type in c#?

.... It's a not-uncommon coding convention. Some folks like an "Is" prefix on all boolean properties. Consistency like that can prevent you from having to guess the first few characters of an identifier (after which, Intellisense works), but at the expense of making a little awkward English in cases li...
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Print All JVM Flags

...iles. Probably the best reason why there is no one document that describes all options is that some of these options are better left to those who really understand the JVM and the best way to do that is to become intimately familiar with the source code. So, in the words (almost) of a great master,...
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JavaScript before leaving the page

... Just a note, if you want to conditionally display a message in onbeforeunload, return false will make the browser show "false" in a dialog. You need to return undefined if you want to let the window close with no user alert. – Dan Fitch ...
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How to get overall CPU usage (e.g. 57%) on Linux [closed]

...s was not tested nor used, it's an idea for people who do not want to install a utility or for something that works in any distribution. Some people think you can "apt-get install" anything. NOTE: this is not the current CPU usage, but the overall CPU usage in all the cores since the system bootup...
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How to delete from a text file, all lines that contain a specific string?

How would I use sed to delete all lines in a text file that contain a specific string? 17 Answers ...
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Determine if variable is defined in Python [duplicate]

...ime? This is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby. ...
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Closure in Java 7 [closed]

... Do you have a more specific link than the overall blog? – I82Much Nov 11 '14 at 4:50 2 ...
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How to get Ruby / Homebrew / RVM to work on Yosemite?

After installing Yosemite, I was unable to run brew or ruby. 11 Answers 11 ...