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How can I write a heredoc to a file in Bash script?
... A-Z <<< 'one two three' will result in the string ONE TWO THREE. More information at en.wikipedia.org/wiki/Here_document#Here_strings
– Stefan Lasiewski
Dec 9 '13 at 18:03
...
How to display a specific user's commits in svn log?
... +1 Works for me too. Like vi, on Unix/Linux distros sed is perhaps more ubiquitous than Python - and therefore no need to worry about installation.
– therobyouknow
Jul 20 '12 at 15:32
...
What does “abstract over” mean?
... = as.foldLeft(z)(f)
}
val sumOfOneTwoThree = sumOf(List(1,2,3))
What's more, we can abstract over both the operation and the type of the operands:
trait Monoid[M] {
def zero: M
def add(m1: M, m2: M): M
}
trait Foldable[F[_]] {
def foldl[A, B](as: F[A], z: B, f: (B, A) => B): B
def f...
TypeScript and field initializers
...er, better ways have come up. Please see the other answers below that have more votes and a better answer. I cannot remove this answer since it's marked as accepted.
Old answer
There is an issue on the TypeScript codeplex that describes this: Support for object initializers.
As stated, you can ...
Is it good style to explicitly return in Ruby?
... as an answer.
TL;DR - You don't have to, but it can make your code a lot more clear in some cases.
Though not using an explicit return may be "the Ruby way", it's confusing to programmers working with unfamiliar code, or unfamiliar with this feature of Ruby.
It's a somewhat contrived example, bu...
What's the difference between HEAD^ and HEAD~ in Git?
... usually what you want
Use ^ on merge commits — because they have two or more (immediate) parents
Mnemonics:
Tilde ~ is almost linear in appearance and wants to go backward in a straight line
Caret ^ suggests an interesting segment of a tree or a fork in the road
Tilde
The “Specifying Revisio...
Replace console output in Python
.....
sys.stdout.write("\rDoing thing %i" % i)
sys.stdout.flush()
Slightly more sophisticated is a progress bar... this is something I am using:
def startProgress(title):
global progress_x
sys.stdout.write(title + ": [" + "-"*40 + "]" + chr(8)*41)
sys.stdout.flush()
progress_x = 0
...
How should I read a file line-by-line in Python?
...y, into one action, is surprising to humans who read the code and makes it more difficult to reason about program behavior.
Other languages have essentially come to the same conclusion. Haskell briefly flirted with so-called "lazy IO" which allows you to iterate over a file and have it automatical...
Is SHA-1 secure for password storage?
...-3 round-2 candidates appear to be faster than SHA-1 while being arguably "more secure"; yet they are still a bit new, so sticking to SHA-256 or SHA-512 would be a safer route right now. It would make you look professional and cautious, which is good.
Note that "as secure as you can get" is not the...
What is the “double tilde” (~~) operator in JavaScript? [duplicate]
...! Better use zero right shift (>>0), it's the fastest one, and looks more similar to signed-to-unsigned conversion (>>>0).
– Triang3l
Dec 21 '12 at 14:20
...