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How to convert a string or integer to binary in Ruby?
...a string representing the number in the base specified:
9.to_s(2) #=> "1001"
while the reverse is obtained with String#to_i(base):
"1001".to_i(2) #=> 9
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When is it better to use an NSSet over an NSArray?
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11 Answers
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How to compute the sum and average of elements in an array?
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31 Answers
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Difference between two dates in Python
...nd take the days member.
from datetime import datetime
def days_between(d1, d2):
d1 = datetime.strptime(d1, "%Y-%m-%d")
d2 = datetime.strptime(d2, "%Y-%m-%d")
return abs((d2 - d1).days)
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Skip first entry in for loop in python?
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How does one use rescue in Ruby without the begin and end block
...on blocks.
– Jörg W Mittag
Oct 22 '11 at 11:25
can you do def rescue ensure end as well?
– Moha...
Android : Check whether the phone is dual SIM
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184
Update 23 March'15 :
Official multiple SIM API is available now from Android 5.1 onwards ...
To find whether a column exists in data frame or not
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edited Apr 28 '12 at 15:09
answered Apr 23 '12 at 7:03
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Spring RestTemplate - how to enable full debugging/logging of requests/responses?
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211
Just to complete the example with a full implementation of ClientHttpRequestInterceptor to trac...
Git: how to reverse-merge a commit?
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106
To create a new commit that 'undoes' the changes of a past commit, use:
$ git revert <comm...