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What does $@ mean in a shell script?
...drea Bergonzo
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answered Apr 3 '12 at 13:30
HarHar
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How to check iOS version?
I want to check if the iOS version of the device is greater than 3.1.3
I tried things like:
37 Answers
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How to find the length of a string in R
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See ?nchar. For example:
> nchar("foo")
[1] 3
> set.seed(10)
> strn <- paste(sample(LETTERS, 10), collapse = "")
> strn
[1] "NHKPBEFTLY"
> nchar(strn)
[1] 10
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Get current directory name (without full path) in a Bash script
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edited Feb 25 '19 at 13:11
Nick Bull
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answere...
Multidimensional Array [][] vs [,] [duplicate]
...uble[5][];
x[0] = new double[10];
x[1] = new double[5];
x[2] = new double[3];
x[3] = new double[100];
x[4] = new double[1];
Because each entry in the array is a reference to an array of double. With a jagged array, you can do an assignment to an array like you want in your second example:
x[0] =...
Python unit test with base and sub class
...ef testSub1(self):
print 'Calling SubTest1:testSub1'
sub = 3
self.assertEquals(sub, 3)
class SubTest2(unittest.TestCase, CommonTests):
def testSub2(self):
print 'Calling SubTest2:testSub2'
sub = 4
self.assertEquals(sub, 4)
if __name__ == '__mai...
How to loop through all but the last item of a list?
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324
for x in y[:-1]
If y is a generator, then the above will not work.
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What does $_ mean in PowerShell?
... the current value in the pipe line, which is called $PSItem in Powershell 3 and newer.
1,2,3 | %{ write-host $_ }
or
1,2,3 | %{ write-host $PSItem }
For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable will contain the current val...
C++11 reverse range-based for-loop
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234
Actually Boost does have such adaptor: boost::adaptors::reverse.
#include <list>
#inclu...
How to concatenate items in a list to a single string?
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answered Sep 17 '12 at 5:33
Burhan KhalidBurhan Khalid
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