大约有 40,000 项符合查询结果（耗时：0.0577秒） [XML]
What do REFRESH and MERGE mean in terms of databases?
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Possible to access the index in a Hash each loop?
..., that worked. I didn't see each_with_index listed in the RDoc for Hash: ruby-doc.org/core/classes/Hash.html. Now I see that it's a member of Enumerable. But too bad that RDoc can't cross reference each_with_index from Hash.html.
– Upgradingdave
Jan 18 '10 at 2...
Concatenate strings in Less
...a numeric variable with a string like px or %: You can un-quote the string by pre-pending it with a tilde ~, as such: width: ~"@{w}px";
– AsGoodAsItGets
Nov 8 '17 at 9:49
add ...
Why `null >= 0 && null
I had to write a routine that increments the value of a variable by 1 if its type is number and assigns 0 to the variable if not, where the variable is initially null or undefined .
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How to see the CREATE VIEW code for a view in PostgreSQL?
...mmand... and got it:
\d+ viewname
You can see similar sorts of commands by typing \? at the pgsql command line.
Bonus tip: The emacs command sql-postgres makes pgsql a lot more pleasant (edit, copy, paste, command history).
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How to correctly require a specific commit in Composer so that it would be available for dependent p
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Looks like GitHub is supported by Composer out of the box - I've just removed the "url": "https://github.com/KnpLabs/Gaufrette.git" from first package and it still works.
– Maciej Sz
Jan 23 '14 at 19:41
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Combine --user with --prefix error with setup.py install
...tly undocumented , however it exists for Python 2.6+; you can see the help by running python setup.py install --help .)
5 ...
What's the difference between Application.ThreadException and AppDomain.CurrentDomain.UnhandledExcep
...ws Forms. Winforms runs event handlers in response to messages sent to it by Windows. The Click event for example, I'm sure you know them. If such an event handler throws an exception then there's a back-stop inside the Winforms message loop that catches that exception.
That backstop fires the...
python: how to send mail with TO, CC and BCC?
...information is separate from the message headers, you can even BCC someone by including them in the method argument but not in the message header.""" from pymotw.com/2/smtplib
– Leonardo Andrade
Apr 14 '15 at 10:45
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Match whole string
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