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How does the following LINQ statement work?
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235
The output is 2,4,6,8 because of deferred execution.
The query is actually executed when t...
Why use try {} finally {} with an empty try block?
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2 Answers
2
Active
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What does “#define _GNU_SOURCE” imply?
...OURCE, but you should avoid defining it and instead define _POSIX_C_SOURCE=200809L or _XOPEN_SOURCE=700 when possible to ensure that your programs are portable.
In particular, the things from _GNU_SOURCE that you should never use are #2 and #4 above.
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How to find current transaction level?
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258
Run this:
SELECT CASE transaction_isolation_level
WHEN 0 THEN 'Unspecified'
WHEN 1 THEN 'Re...
Is it possible to pass query parameters via Django's {% url %} template tag?
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edited Aug 6 '13 at 21:20
eos87
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answered...
Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
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142
Did you mean sprintf '%02d', n?
irb(main):003:0> sprintf '%02d', 1
=> "01"
irb(main):004:...
Given an RGB value, how do I create a tint (or shade)?
Given an RGB value, like 168, 0, 255 , how do I create tints (make it lighter) and shades (make it darker) of the color?
3...
How can I increment a char?
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In Python 2.x, just use the ord and chr functions:
>>> ord('c')
99
>>> ord('c') + 1
100
>>> chr(ord('c') + 1)
'd'
>>>
Python 3.x makes this more organized and interesting, due to its clear distin...
Extracting the last n characters from a ruby string
... a one liner, you can put a number greater than the size of the string:
"123".split(//).last(5).to_s
For ruby 1.9+
"123".split(//).last(5).join("").to_s
For ruby 2.0+, join returns a string
"123".split(//).last(5).join
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Skip a submodule during a Maven build
...s>
<module>module1</module>
<module>module2</module>
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</modules>
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<profiles>
<profile>
<id>ci</id>
<modules>
<module>module1</module>
<module>...