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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...
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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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...
Are lists thread-safe?
...ns easily on smaller numbers but keep the numbers big enough and run a few times and you will see the error
The FLAWED version
import threading
import time
# Change this number as you please, bigger numbers will get the error quickly
count = 1000
l = []
def add():
for i in range(count):
...
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
...
Is Big O(logn) log base e?
...mple, because it better communicates the derivation of the algorithm's run-time.
In big-O() notation, constant factors are removed. Converting from one logarithm base to another involves multiplying by a constant factor.
So O(log N) is equivalent to O(log2 N) due to a constant factor.
However, i...
What does Google Closure Library offer over jQuery? [closed]
...he Closure compiler will. The closure inspector may also be useful, as sometimes minified code has a different behavior than the original one, and is a pain to debug. It integrates with Firebug and support unit tests, which are both developers' best friends nowadays.
Documentation
I guess that as ...
How do I check if string contains substring? [duplicate]
...esenting the position where the specified searchvalue occurs for the first time, or -1 if it never occurs. For my needs: if (str.toLowerCase().indexOf("yes") == -1)
– nwolybug
Sep 14 '15 at 16:23
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How does `scp` differ from `rsync`?
...the call.
rsync A host:B
rsync will check files sizes and modification timestamps of both A and B, and skip any further processing if they match.
If the destination file B already exists, the delta transfer algorithm will make sure only differences between A and B are sent over the wire.
rsync w...