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Python locale error: unsupported locale setting
...to saving readonly files.
After saving the file do:
$ source ~/.bashrc
Now you wont be facing the same problem anymore.
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Why does 1==1==1 return true, “1”==“1”==“1” return true, and “a...
...o being compared to true and is thus also considered to be equal to true.
Now, the "WHY?!?!" question is explained by the fact that Javascript has its roots in the C-family of languages. In which any number, other than 0 is considered to be a valid true boolean. :-/
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Check if value exists in Postgres array
...ething' = ANY(some_array) can also be used in a WHERE clause. For reasons known only to Crom, I have spent the last four years thinking that I couldn't use array comparators in WHERE clauses. Those days are gone now. (I was dropped on my head as a child, so maybe it's just me).
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Convert float to double without losing precision
...point (for example, 0.1). So you either must always round the result to a known precision or use BigDecimal.
See http://en.wikipedia.org/wiki/Floating_point for more information.
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Creating a range of dates in Python
...e import datetime
list(rrule.rrule(rrule.DAILY,count=100,dtstart=datetime.now()))
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Is it possible to hide the cursor in a webpage using CSS or Javascript?
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To my knowledge IE6 supports transparent PNG, as long as it is real transparency and not alpha channel transparency. If in doubt, check yourself with the test suite: libpng.org/pub/png/pngsuite.html.
– Shi
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
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just a side note for those who dont know, we start adding arguments from index 2 because index 0 and 1 are reserved for hidden arguments "self" and "_cmd".
– Vishal Singh
May 15 '13 at 6:20
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how to make a specific text on TextView BOLD
I don't know how to make a specific text on TextView become BOLD.
23 Answers
23
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Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor
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Ant is in homebrew-core now. Simply use brew install ant
– meaku
Oct 29 '13 at 12:31
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quick random row selection in Postgres
...e optimal solution if you want only one row selected, because you need to know the COUNT of the table to calculate the exact percentage.
To avoid a slow COUNT and use fast TABLESAMPLE for tables from 1 row to billions of rows, you can do:
SELECT * FROM my_table TABLESAMPLE SYSTEM(0.000001) LIMI...