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Count, size, length…too many choices in Ruby?
... an element or predicate and count only those items that match.
> [1,2,3].count{|x| x > 2 }
=> 1
In the case where you don't provide a parameter to count it has basically the same effect as calling length. There can be a performance difference though.
We can see from the source code f...
JComboBox Selection Change Listener?
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edited May 23 '17 at 12:10
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answered Sep 12 '08 at 13:32
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MySQL integer field is returned as string in PHP
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When you select data from a MySQL database using PHP the datatype will always be converted to a...
Difference between python3 and python3m executables
What is the difference between the /usr/bin/python3 and /usr/bin/python3m executibles?
1 Answer
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How to format a number 0..9 to display with 2 digits (it's NOT a date)
I'd like to always show a number under 100 with 2 digits (example: 03, 05, 15...)
5 Answers
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Unable to find a locale path to store translations for file __init__.py
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3 Answers
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MySQL “WITH” clause
...://dcx.sybase.com/1100/en/dbusage_en11/commontblexpr-s-5414852.html
SQLite 3.8.3 and later:
http://sqlite.org/lang_with.html
HSQLDB:
http://hsqldb.org/doc/guide/dataaccess-chapt.html#dac_with_clause
Firebird 2.1 and later (the first Open Source DBMS to support recursive queries):
http://www.firebird...