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Else clause on Python while statement
...as an if/else construct with respect to the condition:
if condition:
handle_true()
else:
handle_false()
is analogous to the looping construct:
while condition:
handle_true()
else:
# condition is false now, handle and go on with the rest of the program
handle_false()
An exam...
What is the exact meaning of Git Bash?
...I know now the basic operations such as commit , push , pull , fetch , and merge . But I still don't know what Git Bash itself actually is!
...
Why is Hibernate Open Session in View considered a bad practice?
And what kind of alternative strategies do you use for avoiding LazyLoadExceptions?
9 Answers
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Remove or uninstall library previously added : cocoapods
...our podfile (delete the lines with the pods you don't want to use anymore) and run:
$ pod install
Done.
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What is the difference between UNION and UNION ALL?
What is the difference between UNION and UNION ALL ?
26 Answers
26
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How to speed up insertion performance in PostgreSQL
...n the PostgreSQL manual, depesz's excellent-as-usual article on the topic, and this SO question.
(Note that this answer is about bulk-loading data into an existing DB or to create a new one. If you're interested DB restore performance with pg_restore or psql execution of pg_dump output, much of thi...
IPN vs PDT in Paypal
... some trouble choosing between PayPal's Instant Payment Notification (IPN) and Payment Data Transfer (PDT).
3 Answers
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Is there a way to use shell_exec without waiting for the command to complete?
...; /dev/null 2>/dev/null &');
Note this also gets rid of the stdio and stderr.
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position: fixed doesn't work on iPad and iPhone
...en struggling with fixed positioning in iPad for a while. I know iScroll and it does not always seem to work (even in their demo). I also know that Sencha has a fix for that, but I couldn't Ctrl + F the source code for that fix.
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It is more efficient to use if-return-return or if-else-return?
...like this. All we have achieved is to make the code obfuscated, unreadable and in some cases more vulnerable to implicit type promotions.
– Lundin
Feb 8 '12 at 10:51
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