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Ruby: extend self
...ways helps to think of extend as include inside the singleton class (also known as meta or eigen class).
You probably know that methods defined inside the singleton class are basically class methods:
module A
class << self
def x
puts 'x'
end
end
end
A.x #=> 'x'
Now th...
Renaming branches remotely in Git
...work. Earth Engine's way: always remember to check, or you lose data. I know which one I'd pick.
– Doradus
Oct 27 '15 at 15:01
2
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What are some good Python ORM solutions? [closed]
...leaner syntax and is easier to write for (ActiveRecord pattern). I don't know about performance differences.
SQLAlchemy also has a declarative layer that hides some complexity and gives it a ActiveRecord-style syntax more similar to the Django ORM.
I wouldn't worry about Django being "too heavy."...
Output of git branch in tree like fashion
Right now, when I type "git branch"
6 Answers
6
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What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
...en made to any of those files, Perforce will tell you that those files are now out of date. You will have to sync to the head revision and then resolve the differences. This way you don't inadvertently clobber any changes that you actually want to keep.
Both operations work by essentially submitt...
Where does PostgreSQL store the database?
...ific folder is painful as someone else might have installed it for you and now you do not know the configuration, so following sql helps to save the time. :) Thanks Mike.
– Vishal
Jun 14 '13 at 8:54
...
In pure functional languages, is there an algorithm to get the inverse function?
...n this result, as well as the number of times it can have called f. Define now a family of functions
g j (B1 : B0 : ... (n+j times) ... B0 : ls)
= B0 : ... (n+j times) ... B0 : B1 : ls
g j (B0 : ... (n+j times) ... B0 : B1 : ls)
= B1 : B0 : ... (n+j times) ... B0 : ls
g j l = l
Clearly, for...
What is “lifting” in Scala?
...Stream[A]]. This can be converted to the monad transformer StreamT[IO, A]. Now you may wish to "lift" some other value an IO[B] perhaps to that it is also a StreamT. You could either write this:
StreamT.fromStream(iob map (b => Stream(b)))
Or this:
iob.liftM[StreamT]
this begs the question:...
Difference between author and committer in Git?
...author the "person who wrote the code" doesn't make sense. How would git know who wrote it? When you set git config user and then git add and git commit, then git would know who added and who committed, but it still would not know who wrote it.
– cowlinator
F...
Is there a wikipedia API just for retrieve content summary?
... How can I get information from this JSON response if I don't know pages number. I can't access JSON array containing "extract"
– Laurynas G
Mar 10 '16 at 22:35
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