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Programmatically create a UIView with color gradient
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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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How do I execute a command and get the output of the command within C++ using POSIX?
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How to get the index of an item in a list in a single step?
...) operation, where n is Count.
If the item is not found, it will return -1
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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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How to capitalize the first letter of a String in Java?
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Android : Check whether the phone is dual SIM
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Update 23 March'15 :
Official multiple SIM API is available now from Android 5.1 onwards ...
When is it better to use an NSSet over an NSArray?
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How to compute the sum and average of elements in an array?
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