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var self = this?

...s for event handlers changes the scope of this from "My instance" to "Whatever just called the callback" . So my code looks like this ...
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How to duplicate sys.stdout to a log file?

...g so non-standard that nobody knows - I'll revise my question to also ask: What is the best way to accomplish logging when a python app is making a lot of system calls? ...
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Why is C so fast, and why aren't other languages as fast or faster? [closed]

...t's "close to the machine." Leaving the former assertion for another post, what is special about C that allows it to be faster than other languages? Or put another way: what's to stop other languages from being able to compile down to binary that runs every bit as fast as C? ...
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How to limit setAccessible to only “legitimate” uses?

....lang.reflect.AccessibleObject.setAccessible , the more astonished I am at what it can do. This is adapted from my answer to the question ( Using reflection to change static final File.separatorChar for unit testing ). ...
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How to concatenate stdin and a string?

... A bit hacky, but this might be the shortest way to do what you asked in the question (use a pipe to accept stdout from echo "input" as stdin to another process / command: echo "input" | awk '{print $1"string"}' Output: inputstring What task are you exactly trying to accomp...
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Why can tuples contain mutable items?

...ost. Either way, objects only know their reference count; they don't know what those references are (variables, containers, or the Python internals). Together, these two insights explain your mystery (why an immutable tuple "containing" a list seems to change when the underlying list changes). In...
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What components are MVC in JSF MVC framework?

... bean scope to choose Passing a JSF2 managed pojo bean into EJB or putting what is required into a transfer object Filter do not initialize EntityManager javax.persistence.TransactionRequiredException in small facelet application In the book The Definitive Guide to JSF in Java EE 8, in chapter 8 "...
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What is a .h.gch file?

... Other answers are completely accurate with regard to what a gch file is. However, context (in this case, a beginner using g++) is everything. In this context, there are two rules: Never, ever, ever put a .h file on a g++ compile line. Only .cpp files. If a .h file is ever com...
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jsonify a SQLAlchemy result set in Flask [duplicate]

...bjects cannot be jsonified automatically. Even Python's datetime fails ;) What I have done in the past, is adding an extra property (like serialize) to classes that need to be serialized. def dump_datetime(value): """Deserialize datetime object into string form for JSON processing.""" if v...
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What does “Splats” mean in the CoffeeScript tutorial?

...pters still refer to the syntax as the "splat" or "splat operator." As to what they actually do, splats slice the arguments object in such a way that the splatted argument becomes an array of all "extra" arguments. The most trivial example is (args...) -> In this case, args will simply be an ...