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When to use in vs ref vs out

...f myfuncOut and myfuncRef are identical as expected. outRefTest.myfunc: IL_0000: nop IL_0001: ldc.i4.0 IL_0002: starg.s 00 IL_0004: ldarg.0 IL_0005: stloc.0 IL_0006: br.s IL_0008 IL_0008: ldloc.0 IL_0009: ret outRefTest.myfuncOut: IL_0000: ...
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./

...l character in character classes, so it needs to be first: /[-!$%^&*()_+|~=`{}\[\]:";'<>?,.\/]/ You also need to escape the other regular expression metacharacters. Edit: The hyphen is special because it can be used to represent a range of characters. This same character class can be ...
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TypeScript typed array usage

... You have an error in your syntax here: this._possessions = new Thing[100](); This doesn't create an "array of things". To create an array of things, you can simply use the array literal expression: this._possessions = []; Of the array constructor if you want to se...
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What is the use of join() in Python threading?

... @Aviator45003: Yes, by using the timeout argument like: demon_thread.join(0.0), join() is by default blocking without regard to the daemonized attribute. But joining a demonized thread opens most likely a whole can of trouble! I'm now considering to remove the join() call in my little ...
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What's the canonical way to check for type in Python?

... str.__subclasses__() only returns the direct subclasses of str, and does not do the same thing as issubclass() or isinstance(). (To do that, you would have to recursively call .__subclasses__(). – Thomas Wou...
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Error in finding last used cell in Excel with VBA

...on.CountA(.Cells) <> 0 Then lastrow = .Cells.Find(What:="*", _ After:=.Range("A1"), _ Lookat:=xlPart, _ LookIn:=xlFormulas, _ SearchOrder:=xlByRows, _ SearchDirection:=xlPrevio...
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How to use timeit module

... you defined earlier during the interactive session by importing them from __main__ in the setup statement: >>> def f(x): ... return x * x ... >>> import timeit >>> timeit.repeat("for x in range(100): f(x)", "from __main__ import f", number=100000)...
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Run certain code every n seconds [duplicate]

...ontrol: from threading import Timer class RepeatedTimer(object): def __init__(self, interval, function, *args, **kwargs): self._timer = None self.interval = interval self.function = function self.args = args self.kwargs = kwargs ...
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How to identify numpy types in python?

... Use the builtin type function to get the type, then you can use the __module__ property to find out where it was defined: >>> import numpy as np a = np.array([1, 2, 3]) >>> type(a) <type 'numpy.ndarray'> >>> type(a).__module__ 'numpy' >>> type(a).__m...
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How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar

...s for this example NSFetchedResultsController *fetchedResultsController_; NSFetchedResultsController *searchFetchedResultsController_; NSManagedObjectContext *managedObjectContext_; // The saved state of the search UI if a memory warning removed the view. NSString *savedS...