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What is the most ridiculous pessimization you've seen? [closed]
...ld really say "Gee, we really didn't think of that up front and don't have time to deal with it now".
I've seen many more "ridiculous" examples of dumb performance problems than examples of problems introduced due to "pessimization"
Reading the same registry key thousands (or 10's of thousands) ...
Most underused data visualization [closed]
...I really like visualizations that can handle multivariate data, especially time series data. Heat maps can be useful for this. One really neat one was featured by David Smith on the Revolutions blog. Here is the ggplot code courtesy of Hadley:
stock <- "MSFT"
start.date <- "2006-01-12"
end...
Return multiple values in JavaScript?
...ax, but you can compile ES6 code down to IE-compatible JavaScript at build time with tools like Babel.
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Any good, visual HTML5 Editor or IDE? [closed]
...pletion, it provides explicit support for node.js development, offers real-time collaboration, and you get bash into the deal with all its most popular tools (gcc included). All without having to open anything other than your browser.
I think that's Pretty Awesome.
EDIT Q3 2013 I would also sugges...
Does a finally block always get executed in Java?
...l be called after the execution of the try or catch code blocks.
The only times finally won't be called are:
If you invoke System.exit()
If you invoke Runtime.getRuntime().halt(exitStatus)
If the JVM crashes first
If the JVM reaches an infinite loop (or some other non-interruptable, non-terminati...
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...es, and tab completion, rather than dealing with a clunky giant list every time.
– Ben
Aug 15 '14 at 15:04
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Is not an enclosing class Java
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You can surely call new operator any number of times until you do not want to keep a reference of that object.
– Vishal Kumar
Sep 16 '15 at 10:22
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Test a weekly cron job [closed]
...ctive contexts launched by other programs?" In cron, the trigger is some time condition, but lots of other *nix facilities launch scripts or script fragments in non-interactive ways, and often the conditions in which those scripts run contain something unexpected and cause breakage until the bugs ...
Programmatically add custom event in the iPhone Calendar
...NSDate date]; //today
event.endDate = [event.startDate dateByAddingTimeInterval:60*60]; //set 1 hour meeting
event.calendar = [store defaultCalendarForNewEvents];
NSError *err = nil;
[store saveEvent:event span:EKSpanThisEvent commit:YES error:&err];
self...
Limit a stream by a predicate
... the predicate doesn't throw or have a side-effect if executed a few extra times). The problem is doing it in the context of recursive decomposition (fork/join framework) that Streams use. Really, it's Streams that are horribly inefficient.
– Aleksandr Dubinsky
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