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Get last n lines of a file, similar to tail
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123
This may be quicker than yours. Makes no assumptions about line length. Backs through the fi...
Best way to test for a variable's existence in PHP; isset() is clearly broken
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Mark Amery
98.9k4848 gold badges336336 silver badges379379 bronze badges
answered Jan 6 '09 at 21:07
ZoredacheZo...
Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
...AS j USING(userid)
JOIN useraccounts AS us USING(userid)
WHERE j.jobid = 123
This is completely ambiguous. I put a UserID column in both Companies and user tables and there's no complaint. What if the UserID column in companies is the ID of the last person to modify that row?
I'm serious, Can ...
What's the difference between ASCII and Unicode?
...SCII characters are printable characters of the alphabet such as abc, ABC, 123, ?&!, etc. The others are control characters such as carriage return, line feed, tab, etc.
See below the binary representation of a few characters in ASCII:
0100101 -> % (Percent Sign - 37)
1000001 -> A (Capital...
Mediator Vs Observer Object-Oriented Design Patterns
...ication while observer works only one way.
– kiwicomb123
Mar 3 '19 at 6:51
Exactly, glad it helped
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Difference between class and type
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123
A class is a type. An interface is a type. A primitive is a type. An array is a type.
There...
Reading binary file and looping over each byte
..., 146, 215, 61, 111, 218, 171, 4, 160, 250, 110, 51, 128, 106, 3, 10, 116, 123, 128, 31, 73, 152, 58, 49, 184, 223, 17, 176, 166, 195, 6, 35, 206, 206, 39, 231, 89, 249, 21, 112, 168, 4, 88, 169, 215, 132, 255, 168, 129, 127, 60, 252, 244, 160, 80, 155, 246, 147, 234, 227, 157, 137, 101, 84, 115, 10...
How Pony (ORM) does its tricks?
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@randomsurfer_123 probably not, we just need some time to implement it (maybe a week), and there are other tasks that are more important to us.
– Alexander Kozlovsky
Mar 18 '16 at 10:43
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Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
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98
Update: The final Scala 2.8 release has a mechanism like the one I described. If you look up BitSet in the scaladocs you find: def map ...
What's the best way to trim std::string?
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123
Boost is a set of hammers of many different sizes solving many different problems.
– Ibrahim
Jan 18...