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Hidden Features of Xcode
... my favorite, too. I use it constantly. Also works when we are talking about cpp and h. Not just m! :)
– pestophagous
Sep 30 '08 at 21:20
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Why does AngularJS include an empty option in select?
...e to have this data in the JS. If it's the server that made the decision about what was in that select, why should the JS have to duplicate it?
– heneryville
Feb 6 '13 at 1:06
11
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Bat file to run a .exe at the command prompt
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To start a program and then close command prompt without waiting for program to exit:
start /d "path" file.exe
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equals vs Arrays.equals in Java
...is the same as array1 == array2, i.e. is it the same array. As @alf points out it's not what most people expect.
Arrays.equals(array1, array2) compares the contents of the arrays.
Similarly array.toString() may not be very useful and you need to use Arrays.toString(array).
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What is the difference between map and flatMap and a good use case for each?
...e multiple words per line, and multiple lines, but we end up with a single output array of words
Just to illustrate that, flatMapping from a collection of lines to a collection of words looks like:
["aa bb cc", "", "dd"] => [["aa","bb","cc"],[],["dd"]] => ["aa","bb","cc","dd"]
The input an...
Pimpl idiom vs Pure virtual class interface
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When writing a C++ class, it's appropriate to think about whether it's going to be
A Value Type
Copy by value, identity is never important. It's appropriate for it to be a key in a std::map. Example, a "string" class, or a "date" class, or a "complex number" class. To "copy" in...
Python function as a function argument?
... function(*args, **kwargs)
print other
b('world', a, 'hello', 'dude')
Output
hello dude
world
Note that function, *args, **kwargs have to be in that order and have to be the last arguments to the function calling the function.
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Extracting hours from a DateTime (SQL Server 2005)
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Please spell out things like HOUR instead of using lazy shorthand that isn't always what you expect (try y). Feel free to maintain your own code however you like, but for teaching, I am opposed to promoting lazy shorthand that leads to co...
What is the equivalent of bigint in C#?
... even on Stack Overflow!).
To quote a database administrator who helped me out:
... BigInt is not the same as INT64 no matter how much they look alike. Part of the reason is that SQL will frequently convert Int/BigInt to Numeric as part of the normal processing. So when it goes to OLE or .NET the r...
What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
There are tons of questions and answers about Git versus TFVC Source Control, but no current answers cover the integration of Git into Team Foundation Server/Service that I can find.
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