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100
+50
Quoting ...
Difference between pre-increment and post-increment in a loop?
..., returns the new value.
C#:
string[] items = {"a","b","c","d"};
int i = 0;
foreach (string item in items)
{
Console.WriteLine(++i);
}
Console.WriteLine("");
i = 0;
foreach (string item in items)
{
Console.WriteLine(i++);
}
Output:
1
2
3
4
0
1
2
3
foreach and while loops depend on w...
Java Round up Any Number
... correct function to call. I'm guessing a is an int, which would make a / 100 perform integer arithmetic. Try Math.ceil(a / 100.0) instead.
int a = 142;
System.out.println(a / 100);
System.out.println(Math.ceil(a / 100));
System.out.println(a / 100.0);
System.out.println(Math.ceil(a / 100.0));
Syst...
What is the zero for string?
...="" {
To pass a zero string in stringID, use
k := NewKey(c, "kind", "", 0, p)
From the specification :
When memory is allocated to store a value, either through a
declaration or a call of make or new, and no explicit initialization
is provided, the memory is given a default initializati...
RootViewController Switch Transition Animation
... block:
[UIView transitionWithView:self.window
duration:0.5
options:UIViewAnimationOptionTransitionFlipFromLeft
animations:^{ self.window.rootViewController = newViewController; }
completion:nil];
...
Run Cron job every N minutes plus offset
*/20 * * * *
3 Answers
3
...
Rails mapping array of hashes onto single hash
...g a method call between each element of it.
For example [1, 2, 3].reduce(0, :+) is like saying 0 + 1 + 2 + 3 and gives 6.
In our case we do something similar, but with the merge function, which merges two hashes.
[{:a => 1}, {:b => 2}, {:c => 3}].reduce({}, :merge)
is {}.merge({:a =&g...
.net implementation of bcrypt
...
answered May 16 '09 at 22:02
ineine
13.5k88 gold badges5050 silver badges7878 bronze badges
...
How to write a Ruby switch statement (case…when) with regex and backreferences?
... groups are always stored in pseudo variables $1 to $9:
case foo
when /^([0-9][0-9])/
print "the month is #{$1}"
else
print "something else"
end
You can also use the $LAST_MATCH_INFO pseudo variable to get at the whole MatchData object. This can be useful when using named captures:
case ...
GLib compile error (ffi.h), but libffi is installed
...
270
If you have a Debian-based Linux OS with apt-get:
sudo apt-get install libffi-dev
With a Redh...