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Return two and more values from a method
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def sumdiff(x, y)
return x+y, x-y
end
#=> nil
sumdiff(3, 4)
#=> [7, -1]
a = sumdiff(3,4)
#=> [7, -1]
a
#=> [7, -1]
a,b=sumdiff(3,4)
#=> [7, -1]
a
#=> 7
b
#=> -1
a,b,c=sumdiff(3,4)
#=> [7, -1]
a
#=> 7
b
#=> -1
c
#=> nil
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Check if a string contains one of 10 characters
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edited Sep 7 '09 at 20:44
answered Sep 7 '09 at 19:54
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After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31
Oracle released Java JDK 7 on April 26 for Mac OS X. I followed the install instructions and when I do java -version in a terminal window I get:
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Installed Java 7 on Mac OS X but Terminal is still using version 6
I've installed JDK 7u7 downloaded from oracle's website. But after installation, the terminal is still showing java version 6
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Difference between and ?
Every time I have to add a handler or module for ASP.NET with IIS7, the instructions always tell me to incorporate it into two sections: system.web and system.webserver .
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How does zip(*[iter(s)]*n) work in Python?
..., and it pulls an item from the iterator each time.
x = iter([1,2,3,4,5,6,7,8,9])
print zip(x, x, x)
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How to get the last N rows of a pandas DataFrame?
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answered Feb 7 '13 at 21:03
Wes McKinneyWes McKinney
75.8k2525 gold badges129129 silver badges104104 bronze badges
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How do we control web page caching, across all browsers?
... you don't care about IE6 nor HTTP 1.0 clients (HTTP 1.1 was introduced 1997), then you could omit Pragma.
Cache-Control: no-store, must-revalidate
Expires: 0
If you don't care about HTTP 1.0 proxies either, then you could omit Expires.
Cache-Control: no-store, must-revalidate
On the other han...
Print All JVM Flags
...nd find suitable option faster:
https://chriswhocodes.com/ (OracleJDK 6/7/8/9/10/11/12, OpenJDK 8/9/10/11, Graal CE/EE, OpenJ9, Zing)
http://jvm-options.tech.xebia.fr/
http://www.pingtimeout.fr/2012/05/jvm-options-complete-reference.html
http://stas-blogspot.blogspot.com/2011/07/most-complete-...
How to round up to the nearest 10 (or 100 or X)?
...orestecologist
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answered Jun 24 '11 at 5:51
TommyTommy
36k1212 gold badges8...