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To prevent a memory leak, the JDBC Driver has been forcibly unregistered
...iver in question), not in yours. Be happy that Tomcat did its job properly and wait until the JDBC driver vendor get it fixed so that you can upgrade the driver. On the other hand, you aren't supposed to drop a JDBC driver in webapp's /WEB-INF/lib, but only in server's /lib. If you still keep it in ...
What is the difference between typeof and instanceof and when should one be used vs. the other?
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typeof []; //object
{} instanceof Object; // true
typeof {}; // object
And the last one is a little bit tricky:
typeof null; // object
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Anyway to prevent the Blue highlighting of elements in Chrome when clicking quickly?
Most of the time I'm not worried about it but I have an image carousel and if I click on the next and previous divs quickly, they will be highlighted in Chrome.
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How to set a default value with Html.TextBoxFor?
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Curious to know why capital 'V' works and lowercase 'v' does not? Also, this solution overrides the model value for Age, even if one is present.
– Derek Hunziker
Sep 1 '10 at 23:46
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Is it possible to force Excel recognize UTF-8 CSV files automatically?
...ieve the expected results showing something like Г„/Г¤, Г–/Г¶ . And I don't know how to force Excel understand that the open CSV file is encoded in UTF-8. I also tried specifying UTF-8 BOM EF BB BF , but Excel ignores that.
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postgres default timezone
I installed PostgreSQL 9 and the time it is showing is 1 hour behind the server time.
7 Answers
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What is the best way to count “find” results?
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find <expr> -type f -printf '.' | wc -c
It will be more reliable and faster than counting the lines.
Note that I use the find's printf, not an external command.
Let's bench a bit :
$ ls -1
a
e
l
ll.sh
r
t
y
z
My snippet benchmark :
$ time find -type f -printf '.' | wc -c
8
real ...
What does “not run” mean in R help pages?
...isible on help pages, but will
be run both by the package checking tools, and the
'example()' function. This was previously 'testonly', and
that form is still accepted.
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Extracting specific columns in numpy array
...but say I have an MxN matrix. All I want to do is extract specific columns and store them in another numpy array but I get invalid syntax errors.
Here is the code:
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Alter MySQL table to add comments on columns
I have been checking the MySQL Documentation for ALTER TABLE and it does not seem to include a way to add or modify a comment to a column. How can I do this?
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