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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
...fo/Repetition
No trim() regex
It's also possible to do this with just one replaceAll, but this is much less readable than the trim() solution. Nonetheless, it's provided here just to show what regex can do:
String[] tests = {
" x ", // [x]
" 1 2 3 ", // [1...
MVC Razor view nested foreach's model
...l=>model.SomeProperty);
It looks like we have a little lambda, And if one were to guess the signature, one might think that the type for
this argument would simply be a Func<TModel, TProperty>, where TModel is the type of the view model and TProperty
is inferred as the type of the propert...
Static Classes In Java
...
What good are static classes? A good use of a static class is in defining one-off, utility and/or library classes where instantiation would not make sense. A great example is the Math class that contains some mathematical constants such as PI and E and simply provides mathematical calculations. Req...
How do you fork your own repository on GitHub?
...
I don't think you can fork your own repo.
Clone it and push it to a new repo is good but you need to:
git clone https://github.com/userName/Repo New_Repo
cd New_Repo
git remote set-url origin https://github.com/userName/New_Repo
git remote add upstream https://github....
Polymorphism in C++
...at when the type of data you're processing has a .size() member you'll use one function, otherwise another function that doesn't need .size() (but presumably suffers in some way - e.g. using the slower strlen() or not printing as useful a message in the log). You can also specify ad-hoc behaviours ...
How to delete a stash created with git stash create?
...vote correct answer specific to the second half of the title. That's a new one.
– dahlbyk
Sep 18 '13 at 3:19
10
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Is there a better way to run a command N times in bash?
...
for run in {1..10}
do
command
done
Or as a one-liner for those that want to copy and paste easily:
for run in {1..10}; do command; done
share
|
impro...
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 ...
I need to pop up and trash away a “middle” commit in my master branch. How can I do it?
...git rebase -i <commit>^
That takes you to the commit just before the one you want to remove. The interactive editor will show you a list of all the commits back to that point. You can pick, squash, etc. In this case remove the line for the commit you want to erase and save the file. Rebase wil...
How to pass in password to pg_dump?
...m all in the script. If the password changes you only have to change it in one place (the script).
And I agree with Joshua, using pg_dump -Fc generates the most flexible export format and is already compressed. For more info see: pg_dump documentation
E.g.
# dump the database in custom-format ar...