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Tags for Emacs: Relationship between etags, ebrowse, cscope, GNU Global and exuberant ctags
...e autocompletion, the looking up of definitions, navigation of source code base or the previewing of doc-strings.
5 Answers...
Best way to represent a fraction in Java?
...)
{
//Implementation note: A fraction can be represented exactly in base-10 iff its
//denominator is of the form 2^a * 5^b, where a and b are nonnegative integers.
//(In other words, if there are no prime factors of the denominator except for
//2 and 5, or if the denominator is 1)...
I want my android application to be only run in portrait mode?
...
@EduardoCoelho you can actually make a base class PortraitActivity and in onCreate call setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT) All activities extending this won't rotate
– Twinone
Jun 6 '14 at 9:07
...
Right query to get the current number of connections in a PostgreSQL DB
...rsion of the first one would be:
SELECT sum(numbackends) FROM pg_stat_database;
In that case, I would expect that version to be slightly faster than the second one, simply because it has fewer rows to count. But you are not likely going to be able to measure a difference.
Both queries are based ...
ViewParam vs @ManagedProperty(value = “#{param.id}”)
...init}" /> inside the <f:metadata> to do initialization/preloading based on the set values. Since JSF 2.2 you could use <f:viewAction> for that instead.
Allows for nested <f:converter> and <f:validator> for more fine-grained conversion/validation. Even a <h:message> ...
What browsers support HTML5 WebSocket API?
...ywebsockets
websockify
gevent-websocket, gevent-socketio and flask-sockets based on the former
Autobahn
Tornado
In C:
libwebsockets
In Node.js:
Socket.io : Socket.io also has serverside ports for Python, Java, Google GO, Rack
sockjs : sockjs also has serverside ports for Python, Java, Erlang...
SimpleTest vs PHPunit
...sly).
PHPUnit is actively maintained, stable and works great for every codebase, every scenario and every way you want to write your tests.
(Subjective) PHPUnit provides much nicer code coverage reports than Simpletest
With PHPUnit you also get these reports inside your IDE (Netbeans, Eclipse, ...)
...
Difference between Git and GitHub
...centralised version control systems.
What is GitHub:
"GitHub is a web-based Git repository hosting service, which offers all of the distributed revision control and source code management (SCM) functionality of Git as well as adding its own features."
Github provides access control and severa...
Table is marked as crashed and should be repaired
...
Run this from your server's command line:
mysqlcheck --repair --all-databases
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When to use f:viewAction / preRenderView versus PostConstruct?
... the @PostConstruct annotation? Is the rationale to use one or the other based on the type of scope of the backing bean e.g. If the backing bean is @RequestScoped , then would the choice of using f:viewAction or preRenderView over @PostConstruct to initialize your backing bean prior to rend...