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Remove Elements from a HashSet while Iterating [duplicate]

...et.removeIf((Integer element) -> { return (element % 2 == 0); }); Now your set contains only odd values. share | improve this answer | follow | ...
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What do two question marks together mean in C#?

... Tangential but related: It's now in Swift, but it's very different: "Nil Coalescing Operator" developer.apple.com/library/ios/documentation/Swift/Conceptual/… – Dan Rosenstark Oct 14 '15 at 19:21 ...
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python pandas: apply a function with arguments to a series

...andas do allow you to pass extra arguments (see the new documentation). So now you can do: my_series.apply(your_function, args=(2,3,4), extra_kw=1) The positional arguments are added after the element of the series. For older version of pandas: The documentation explains this clearly. The app...
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'printf' vs. 'cout' in C++

...s way better than printf, even if the question just asked for differences. Now, there is a difference - std::cout is C++, and printf is C (however, you can use it in C++, just like almost anything else from C). Now, I'll be honest here; both printf and std::cout have their advantages. Real differen...
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How to unit test a Node.js module that requires other modules and how to mock the global require fun

... You can now! I published proxyquire which will take care of overriding the global require inside your module while you are testing it. This means you need no changes to your code in order to inject mocks for required modules. Prox...
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In OS X Lion, LANG is not set to UTF-8, how to fix it?

...e you use zsh, don't be dumb as me... the config there is ~/.zshrc... well now works like a charm – Redrick Feb 13 '17 at 16:05  |  show 6 mor...
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Python to print out status bar and percentage

...t modification: sys.stdout.write("[%-20s] %d%%" % ('='*int(20*j), 100*j)). Now the only change you need to make is to n=21 before the loop (more likely n=len(iterable)), then enumerate over the iterable object. I recommended this edit but it was rejected; apparently functionality "deviates from the ...
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Using Sinatra for larger projects via multiple files

...g Thin, you run an app like this using: thin -R config.ru start Edit: I'm now maintaining my own Monk skeleton based on the below called Riblits. To use it to copy my template as the basis for your own projects: # Before creating your project monk add riblits git://github.com/Phrogz/riblits.git #...
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How efficient can Meteor be while sharing a huge collection among many clients?

...t. We haven't exposed the API for setting subscription priority yet. For now, priority is determined by the order the client subscribes to data sets. The first subscription a client makes has the highest priority, the second subscription is next highest, and so on. Because the merge box holds th...
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In JavaScript, does it make a difference if I call a function with parentheses?

...they can be passed around exactly as if we were passing around values. So now to the difference of assignment: var operator = 3; var operand = 4; var ret = Multiply(operator, operand); At the point of defining the ret variable, Multiply is executed and the return value is assigned - ret becomes ...