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How can I use “puts” to the console without a line break in ruby on rails?
...nd
Edit: I was just looking into the reasoning behind flush to answer @rubyprince's comment, and realised this could be cleaned up a little by simply using $stdout.sync = true...
$stdout.sync = true
100.times do
print "."
sleep 1
end
...
Where are static methods and static variables stored in Java?
...
@Nav not all parts of the heap are garbage collected by default and sometimes classes and thus static variables can't be collected since class loaders still have a reference on them. Additionally you shouldn't rely on the garbage collector to run since that's totally up to the ...
What command means “do nothing” in a conditional in Bash?
...is more difficult to read. Bash is a DevOps language, and if : is written by someone on my team, I'd have them change it.
– SaintHax
May 29 '17 at 19:51
3
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Appropriate datatype for holding percent values?
... decimal is ANSI compliant, so always use that unless told otherwise (e.g. by your company's coding standards).
Example Scenarios
For your case (0.00% to 100.00%) you'd want decimal(5,4).
For the most common case (0% to 100%) you'd want decimal(3,2).
In both of the above, the check constraints w...
How can I add an animation to the activity finish()
...
by "Details", @Goofyahead is naming his enclosing Activity--ymmv. This technique worked for me to replace an animation from Theme.Dialog on 2.x, but not 3.x or 4.x
– larham1
Oct 25 '12 a...
What are free monads?
...er: A Monad is something that "computes" when monadic context is collapsed by join :: m (m a) -> m a (recalling that >>= can be defined as x >>= y = join (fmap y x)). This is how Monads carry context through a sequential chain of computations: because at each point in the series, the...
What is scope/named_scope in rails?
I've recently started an internship. My employer uses ruby on rails, and I frequently encounter new syntax that I need to look up to understand. I've googled around for a good explanation of named_scope, but what I've found so far is mostly blog posts giving high praise for it, rather a straight def...
Postgis installation: type “geometry” does not exist
I am trying to create table with Postgis. I do it by this page . But when I import postgis.sql file, I get a lot of errors:
...
Declare a const array
...ight not be the most efficient solution.
But if you re-use the same array (by putting it in a private attribute for instance) it will again open up the possibility to change the contents of the array.
If you want to have an immutable array (or list) you could also use:
public static IReadOnlyList&...
Under what conditions is a JSESSIONID created?
...g the attributes in that
object, must never be shared between
contexts by the container.
(Servlet 2.4 specification)
Update: Every call to JSP page implicitly creates a new session if there is no session yet. This can be turned off with the session='false' page directive, in which case sessio...