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Java logical operator short-circuiting
...ator & and will throw a NullPointerException if input is null, but the 1st version will return false without an exception.
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Windows batch: call more than one command in a FOR loop?
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117
FOR /r %%X IN (*) DO (ECHO %%X & DEL %%X)
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CSS table column autowidth
...(The last column should autosize-width to the content. Suppose i have only 1 li element it should shrink vs. having 3 li elements etc):
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What does upstream mean in nginx?
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165
It's used for proxying requests to other servers.
An example from http://wiki.nginx.org/LoadB...
What are the best practices for JavaScript error handling?
...ise JavaScript Error Handling can be found at http://www.devhands.com/2008/10/javascript-error-handling-and-general-best-practices/
In short it summarizes:
Assume your code will fail
Log errors to the server
You, not the browser, handle errors
Identify where errors might occur
Throw your own erro...
String concatenation vs. string substitution in Python
...:
... return "%s%s/%d" % (DOMAIN, QUESTIONS, n)
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>>> so_q_sub(1000)
'http://stackoverflow.com/questions/1000'
>>> def so_q_cat(n):
... return DOMAIN + QUESTIONS + '/' + str(n)
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>>> so_q_cat(1000)
'http://stackoverflow.com/questions/1000'
>>> t1 = timeit.Ti...
c# open file with default application and parameters
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Joachim Sauer
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answered Jul 6 '12 at 16:25
daniloquiodaniloquio
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com.jcraft.jsch.JSchException: UnknownHostKey
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12 Answers
12
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PostgreSQL delete with inner join
i am getting the following error PostgreSQL 8.2.11
5 Answers
5
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