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Finding the index of elements based on a condition using python list comprehension

... In Python, you wouldn't use indexes for this at all, but just deal with the values—[value for value in a if value > 2]. Usually dealing with indexes means you're not doing something the best way. If you do need an API similar to Matlab's, you would use numpy, a packag...
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List of special characters for SQL LIKE clause

What is the complete list of all special characters for a SQL (I'm interested in SQL Server but other's would be good too) LIKE clause? ...
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Do I set properties to nil in dealloc when using ARC?

... Short answer: no, you do not have to nil out properties in dealloc under ARC. Long answer: You should never nil out properties in dealloc, even in manual memory management. In MRR, you should release your ivars. Nilling out properties means calling setters, which may invoke code that...
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Adding a cross-reference to a subheading or anchor in another page

... because it works across files, when section headings are changed, and for all builders that support cross-references. RST, in General The tools that convert RST files to HTML do not necessarily have a notion of collection. This is the case for instance if you rely on github to convert RST files ...
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Read-only and non-computed variable properties in Swift

...g in Objective-C. I have readonly properties, and they cannot be individually changed. However, using a specific method, the properties are changed in a logical way. ...
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How to remove line breaks from a file in Java?

How can I replace all line breaks from a string in Java in such a way that will work on Windows and Linux (ie no OS specific problems of carriage return/line feed/new line etc.)? ...
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Understanding reference counting with Cocoa and Objective-C

...view to playing with the iPhone SDK. I'm reasonably comfortable with C's malloc and free concept, but Cocoa's references counting scheme has me rather confused. I'm told it's very elegant once you understand it, but I'm just not over the hump yet. ...
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How can I get Eclipse to show .* files?

... it somehow possible to only include the file named .gitignore but exclude all other files starting with .? – Edward Jan 8 '15 at 12:08 3 ...
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Multiple levels of 'collection.defaultdict' in Python

...ng specific that you need help with? When d[new_key] is accessed, it will call the lambda which will create a new defaultdict(int). And when d[existing_key][new_key2] is accessed, a new int will be created. – interjay Oct 11 '13 at 12:53 ...
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How to compile a static library in Linux?

...: target: prerequisites - the rule head $@ - means the target $^ - means all prerequisites $< - means just the first prerequisite ar - a Linux tool to create, modify, and extract from archives see the man pages for further information. The options in this case mean: r - replace files existing...