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Generating a random & unique 8 character string using MySQL
...TE vehicles SET numberplate=concat(
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@lid)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', ran...
How to describe “object” arguments in jsdoc?
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– Michael Bylstra
Nov 11 '12 at 2:50
1
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Java: notify() vs. notifyAll() all over again
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answered Aug 31 '08 at 19:25
LiedmanLiedman
9,03644 gold badges3131 silver badges3535 bronze badges
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What is a plain English explanation of “Big O” notation?
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+50
Quick note, this is almost certainly confusing Big O notation (which is an upper bound) with Theta notation "Θ" (which is a two-side ...
iOS 5 Best Practice (Release/retain?)
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answered Jun 10 '11 at 15:28
sudo rm -rfsudo rm -rf
28.7k1919 gold badges9898 silver badges157157 bronze badges
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Should I be using object literals or constructor functions?
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answered Feb 1 '11 at 7:04
Ates GoralAtes Goral
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Pass in an array of Deferreds to $.when()
...ontrived example of what's going on: http://jsfiddle.net/adamjford/YNGcm/20/
9 Answers
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Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞 ...
...数指明实际要发送的数据的字节数；
第四个参数一般置0。
这里只描述同步Socket的send函数的执行流程。当调用该函数时，send先比较待发送数据的长度len和套接字s的发送缓冲 的 长度 ， 如果len大于s的发送缓冲区的长度，该函...
How to print the current Stack Trace in .NET without any exception?
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408
Have a look at the System.Diagnostics namespace. Lots of goodies in there!
System.Diagnostics...
Finding all possible permutations of a given string in python
...s = [''.join(p) for p in permutations('stacks')]
>>> len(perms)
720
>>> len(set(perms))
360
Thanks to @pst for pointing out that this is not what we'd traditionally think of as a type cast, but more of a call to the set() constructor.
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