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Ruby: extend self
... to make instance methods into class methods. But you can also use it as a more efficient singleton.
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How can I scale an entire web page with CSS?
...oom is supported in all current major browsers except Firefox. And it's no more proprietary than any of the -moz- CSS extensions.
– Jon Galloway
Jul 21 '09 at 15:44
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Submit a form using jQuery [closed]
...rameters. $('form#MyForm').serialize() + '&newData=' + newData + '&moreData=' + moreData. Note: the latter two may need to be url encoded using encodeURIComponent(). OR - you could change to use JSON encoding on both ends but then you'd need to put the form data into a JavaScript data stru...
PostgreSQL DISTINCT ON with different ORDER BY
...ND t1.purchased_at = t2.max_purchased_at
ORDER BY t1.purchased_at DESC
A more PostgreSQL-oriented solution based on @hkf's answer:
SELECT * FROM (
SELECT DISTINCT ON (address_id) *
FROM purchases
WHERE product_id = 1
ORDER BY address_id, purchased_at DESC
) t
ORDER BY purchased_at DESC
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How to validate phone numbers using regex
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How to determine total number of open/active connections in ms sql server 2005
...Connections
FROM
sys.sysprocesses
WHERE
dbid > 0
If you need more detail, run:
sp_who2 'Active'
Note: The SQL Server account used needs the 'sysadmin' role (otherwise it will just show a single row and a count of 1 as the result)
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Python: Fetch first 10 results from a list [duplicate]
... a variable identifier as it's already used by Python: list()
To find out more about these type of operations you might find this tutorial on lists helpful and the link @DarenThomas provided Explain Python's slice notation - thanks Daren)
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Classpath including JAR within a JAR
...oned below, you can also use the assembly plugin (which in reality is much more powerful, but much harder to properly configure).
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Where does gcc look for C and C++ header files?
...? On my debian jessie $(gcc -print-prog-name=cpp) -v (correctly) gives one more path, which is /usr/include/x86_64-linux-gnu
– wlnirvana
May 6 '16 at 15:10
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