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Alias with variable in bash [duplicate]
...or that, rather than alias, and then exported it, like this:
function tail_ls { ls -l "$1" | tail; }
export -f tail_ls
Note -f switch to export: it tells it that you are exporting a function. Put this in your .bashrc and you are good to go.
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lock(new object()) — Cargo cult or some crazy “language special case”?
...r. Not sure if c# does lock elision or if it does whether it preserves the ordering semantics of the lock.
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What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
...e second command won't be executed. The later simply executes them both in order.
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How to get std::vector pointer to the raw data?
...he iterator returned by begin() (as the compiler warns, this is not technically allowed because something.begin() is an rvalue expression, so its address cannot be taken).
Assuming the container has at least one element in it, you need to get the address of the initial element of the container, whi...
What does an exclamation mark mean in the Swift language?
...pple have chosen to declare the types as implicitly unwrapped, making the calling code more convenient, but less safe.
Perhaps Apple might comb through their frameworks in the future, removing the uncertainty of implicitly unwrapped ("probably never nil") parameters and replacing them with optional...
Create a File object in memory from a string in Java
...nt to create/write a new File (I don't have write access to filesystem) in order to pass my string data to the function. I should add that the String data don't exist in a file (so I cannot read my data from a file).
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Check if at least two out of three booleans are true
... is impractical, and dare I say, useless. Micro-optimizations, when driven by the need, is guided by runtime profiling results, not human instincts (which are known to be terrible). You can certainly ask interviewees the process by which you'd optimize this further; that's more important than the re...
What is the difference between Scala's case class and class?
...xclusively depend on their constructor arguments.
This functional concept allows us to
use a compact initialization syntax (Node(1, Leaf(2), None)))
decompose them using pattern matching
have equality comparisons implicitly defined
In combination with inheritance, case classes are used to mimi...
Xcode 4, Core Data Model Version - Set Current Version
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A little off topic, but if you've reached this question in order to know how to create a first new version of your model (like i did) :
click on the xcdatamodel file >> Menu "Editor" >> Add Model version
This will initiate the versionning of the model.
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Multiline string literal in C#
...literal I find is that it can make your code look a bit "weird" because in order to not get spaces in the string itself, it has to be completely left aligned:
var someString = @"The
quick
brown
fox...";
Yuck.
So the solution I like to use, which keeps everything nicely aligned with the res...