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What are -moz- and -webkit-? [duplicate]
... used to learn CSS, I have never seen anything like these lines. Could someone please explain these lines to me or give me a source where I could learn to implement lines like these?
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Haskell: Lists, Arrays, Vectors, Sequences
... they are coinductive (other languages call these streams) so things like
ones :: [Integer]
ones = 1:ones
twos = map (+1) ones
tenTwos = take 10 twos
work wonderfully. Infinite data structures rock.
Lists in Haskell provide an interface much like iterators in imperative languages (because of ...
How do you delete all text above a certain line
...top of the file.
Also
dG
will delete all lines at or below the current one
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Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
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First off, let me just say that Jon's answer is correct. This is one of the hairiest parts of the spec, so good on Jon for diving into it head first.
Second, let me say that this line:
An implicit conversion exists from a method group to a compatible delegate type
(emphasis added) i...
How to match “anything up until this sequence of characters” in a regular expression?
...or of regex you're using, but this will
work in any of the most popular ones that can be considered "complete".
/.+?(?=abc)/
How it works
The .+? part is the un-greedy version of .+ (one or more of
anything). When we use .+, the engine will basically match everything.
Then, if there ...
What is lazy loading in Hibernate?
...ldren() will cause Hibernate to load all the children in the collection in one db query. Unless you used the very special "extra lazy" lazy loading hint. Or unless you cache the collection in second level cache and the associated children are not also cached.
– Steve Ebersole...
Converting Dictionary to List? [duplicate]
...ust specify it between square brackets as shown above. And we could have done dictlist.append([key,value]) if we wanted to be as brief as possible.
Or just use dict.items() as has been suggested.
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Ignore python multiple return value
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One common convention is to use a "_" as a variable name for the elements of the tuple you wish to ignore. For instance:
def f():
return 1, 2, 3
_, _, x = f()
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Select the values of one property on all objects of an array in PowerShell
...e list of the current directory and just have the Name property displayed, one would do the following:
ls | select -Property Name
This is still returning DirectoryInfo or FileInfo objects. You can always inspect the type coming through the pipeline by piping to Get-Member (alias gm).
ls | select...
Copy existing project with a new name in Android Studio
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As free3dom pointed out, here's what should be done:
Create a copy using file manager
Manually edit the app's build.gradle file to change the package name (you can use the file manager).
Manually edit AndroidManifest.xml to change the package name.
Run gradle sync.
Open ...