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Suppress command line output

... the invocation to this: taskkill /im "test.exe" /f >nul 2>&1 and all will be better. That works because stdout is file descriptor 1, and stderr is file descriptor 2 by convention. (0 is stdin, incidentally.) The 2>&1 copies output file descriptor 2 from the new value of 1, whic...
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What does the star operator mean, in a function call?

... s = sum(1, 2) The double star ** does the same, only using a dictionary and thus named arguments: values = { 'a': 1, 'b': 2 } s = sum(**values) You can also combine: def sum(a, b, c, d): return a + b + c + d values1 = (1, 2) values2 = { 'c': 10, 'd': 15 } s = sum(*values1, **values2) w...
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Could not locate Gemfile

...no Ruby developer but I have an application on my server using Ruby, Gems, and Bundler. I am trying to install another Ruby on under a different user account but on the same VPS. When I go to run ...
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What's the difference between => , ()=>, and Unit=>

I'm trying to represent a function that takes no arguments and returns no value (I'm simulating the setTimeout function in JavaScript, if you must know.) ...
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How do I access the host machine from the guest machine? [closed]

... On the XP machine, find your IP address by going to the command prompt and typing ipconfig. Try replacing the last number with 1 or 2. For example, if your IP address is 192.168.78.128, use http://192.168.78.1:3000. ...
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Get file size, image width and height before upload

How can I get the file size, image height and width before upload to my website, with jQuery or JavaScript? 7 Answers ...
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Javascript swap array elements

...lizing the temporary variable approach as it's cross-language (e.g. C/C++) and the first approach that usually pops into my mind. – Ultimater Aug 15 '18 at 7:22 3 ...
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Difference between .success() and .complete()?

...AX methods return a jqXHR object that provides .error() , .success() , and .complete() methods. 4 Answers ...
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Callback functions in C++

In C++, when and how do you use a callback function? 10 Answers 10 ...
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Datetime - Get next tuesday

...day, you can use: // This finds the next Monday (or today if it's Monday) and then adds a day... so the // result is in the range [1-7] int daysUntilTuesday = (((int) DayOfWeek.Monday - (int) today.DayOfWeek + 7) % 7) + 1; ... or you could use the original formula, but from tomorrow: DateTime to...