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How do I delete an exported environment variable?
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unset is the command you're looking for.
unset GNUPLOT_DRIVER_DIR
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Java String split removed empty values
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edited Jun 20 at 9:12
Community♦
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answered Jan 30 '13 at 10:44
jlordojlordo
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How to delete duplicate rows in SQL Server?
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I like CTEs and ROW_NUMBER as the two combined allow us to see which rows are deleted (or updated), therefore just change the DELETE FROM CTE... to SELECT * FROM CTE:
WITH CTE AS(
SELECT [col1], [col2], [col3], [col4], [col5], [col6], [col7],
RN = ROW_...
Why does Internet Explorer not send HTTP post body on Ajax call after failure?
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What's the difference between findAndModify and update in MongoDB?
... down to logic or implementation bugs on the client side, but of course in complex software there can always be a bug.
– Asya Kamsky
Apr 30 '13 at 3:07
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Converting between strings and ArrayBuffers
Is there a commonly accepted technique for efficiently converting JavaScript strings to ArrayBuffers and vice-versa? Specifically, I'd like to be able to write the contents of an ArrayBuffer to localStorage and to read it back.
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How can I search for a commit message on GitHub?
...epository , but rather in GitHub specifically - how do I search just the commit messages of a specific repository/branch?
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Why do function pointer definitions work with any number of ampersands '&' or asterisks '*'?
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There are a few pieces to this that allow all of these combinations of operators to work the same way.
The fundamental reason why all of these work is that a function (like foo) is implicitly convertible to a pointer to the function. This is why void (*p1_foo)() = foo; works: ...
Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int'
...t integer.
So int is a "smaller" datatype than NSUInteger, therefore the compiler warning.
See also NSUInteger in the "Foundation Data Types Reference":
When building 32-bit applications, NSUInteger is a 32-bit unsigned
integer. A 64-bit application treats NSUInteger as a 64-bit unsigned
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