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Reasons for using the set.seed function
...produce as I just asked for something "random":
R> sample(LETTERS, 5)
[1] "K" "N" "R" "Z" "G"
R> sample(LETTERS, 5)
[1] "L" "P" "J" "E" "D"
These two, however, are identical because I set the seed:
R> set.seed(42); sample(LETTERS, 5)
[1] "X" "Z" "G" "T" "O"
R> set.seed(42); sample(LE...
Jquery select all elements that have $jquery.data()
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edited Jul 9 '15 at 6:42
Tushar
75.5k1414 gold badges124124 silver badges147147 bronze badges
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Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
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edited Dec 22 '14 at 22:36
answered Jan 19 '12 at 2:16
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Forward host port to docker container
...ok something like
3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 22:23:6b:28:6b:e0 brd ff:ff:ff:ff:ff:ff
inet 172.17.42.1/16 scope global docker0
inet6 fe80::a402:65ff:fe86:bba6/64 scope link
valid_lft forever preferred_lft forever
You will need ...
Regex to match a digit two or four times
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145
There's no specific syntax for that, but there are lots of ways to do it:
(?:\d{4}|\d{2}) ...
How to achieve function overloading in C?
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14 Answers
14
Active
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get all characters to right of last dash
...e next step is obvious:
var result = str.Substring(str.LastIndexOf('-') + 1);
Correction:
As Brian states below, using this on a string with no dashes will result in the same string being returned.
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python: Change the scripts working directory to the script's own directory
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edited Feb 10 '12 at 14:41
answered Sep 16 '09 at 13:26
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Foreach loop, determine which is the last iteration of the loop
...Model.Results[count];
// do something with each item
if ((count + 1) == totalCount)
{
// do something different with the last item
}
else
{
// do something different with every item but the last
}
}
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