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How to get the first five character of a String
...ar of the string. Is there a way to get the first n number of characters from a string in C#?
19 Answers
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How can I extend typed Arrays in Swift?
...a while trying different things the solution seems to remove the <T> from the signature like:
extension Array {
func find(fn: (T) -> Bool) -> [T] {
var to = [T]()
for x in self {
let t = x as T;
if fn(t) {
to += t
}...
How does Bluebird's util.toFastProperties function make an object's properties “fast”?
...cts in fast mode.
This hack is intended to force the object into fast mode from dictionary mode.
Bluebird's Petka himself talks about it here.
These slides by Vyacheslav Egorov also mentions it.
This question and its accepted answer are also related.
This slightly outdated article is still a fairly...
git rebase, keeping track of 'local' and 'remote'
... resolving conflicts. I sometimes have the impression that they swap sides from one commit to the next.
4 Answers
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Zoom in on a point (using scale and translate)
... visible origin. Originally the mouse is at a
// distance mouse/scale from the corner, we want the point under
// the mouse to remain in the same place after the zoom, but this
// is at mouse/new_scale away from the corner. Therefore we need to
// shift the origin (coordinates of...
Fastest way to iterate over all the chars in a String
...d this first: http://www.javaspecialists.eu/archive/Issue237.html
Starting from Java 9, the solution as described won't work anymore, because now Java will store strings as byte[] by default.
SECOND UPDATE: As of 2016-10-25, on my AMDx64 8core and source 1.8, there is no difference between using 'ch...
How to change the port of Tomcat from 8080 to 80?
... This answer lacks the /etc/authbind information, see answer from Rose below
– jorfus
Mar 9 '16 at 4:28
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Difference between case object and object
...
Case classes differ from regular classes in that they get:
pattern matching support
default implementations of equals and hashCode
default implementations of serialization
a prettier default implementation of toString, and
the small amount of...
How to extract the first two characters of a string in shell scripting?
...s creation overhead. All solutions which use external programs will suffer from that overhead.
If you also wanted to ensure a minimum length, you could pad it out before hand with something like:
pax> long="A"
pax> tmpstr="${long}.."
pax> short="${tmpstr:0:2}" ; echo "${short}"
A.
This ...
Kill child process when parent process is killed
I'm creating new processes using System.Diagnostics.Process class from my application. I want this processes to be killed when/if my application has crashed. But if I kill my application from Task Manager, child processes are not killed. Is there any way to make child processes dependent on ...