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How to get a random number in Ruby
...you need to guess 10 numbers, you can initialize them with:
10.times.map{ 20 + Random.rand(11) }
#=> [26, 26, 22, 20, 30, 26, 23, 23, 25, 22]
Note:
Using Random.new.rand(20..30) (using Random.new) generally would not be a good idea, as explained in detail (again) by Marc-André Lafortune, ...
Maximum length for MySQL type text
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Mark Mullin
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answered Jul 20 '11 at 18:43
fyrfyr
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What's the rationale for null terminated strings?
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answered Dec 11 '10 at 20:25
Hans PassantHans Passant
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What is the use of the ArraySegment class?
...l array, get the first item, and so on:
var array = new byte[] { 5, 8, 9, 20, 70, 44, 2, 4 };
array.Dump();
var segment = new ArraySegment<byte>(array, 2, 3);
segment.Dump(); // output: 9, 20, 70
segment.Reverse().Dump(); // output 70, 20, 9
segment.Any(s => s == 99).Dump(); // output fals...
MySql Table Insert if not exist otherwise update
...INSERT INTO AggregatedData (datenum,Timestamp)
VALUES ("734152.979166667","2010-01-14 23:30:00.000")
ON DUPLICATE KEY UPDATE
Timestamp=VALUES(Timestamp)
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How to execute IN() SQL queries with Spring's JDBCTemplate effectivly?
...n.
– Timofey Gorshkov
Jan 18 '12 at 20:36
10
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Semi-transparent color layer over background-image?
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answered Feb 7 '12 at 20:04
Johannes KlaußJohannes Klauß
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How can I get a JavaScript stack trace when I throw an exception?
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Edit 2 (2017):
In all modern browsers you can simply call: console.trace(); (MDN Reference)
Edit 1 (2013):
A better (and simpler) solution as pointed out in the comments on the original question is to use the stack property of an ...
Caveats of select/poll vs. epoll reactors in Twisted
... file descriptors that actually have events on them. If you're monitoring 200 file descriptors, but only 100 of them have events on them, then you're (very roughly) only paying for those 100 active file descriptors. This is where epoll tends to offer one of its major advantages over select. If yo...
How to use sessions in an ASP.NET MVC 4 application?
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answered Dec 20 '13 at 11:50
Joseph WoodwardJoseph Woodward
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