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How to keep the spaces at the end and/or at the beginning of a String?
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answered Feb 5 '10 at 11:05
duessiduessi
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how to change default python version?
I have installed python 3.2 in my mac. After I run /Applications/Python 3.2/Update Shell Profile.command , it's confusing that when I type python -V in Terminal it says that Python 2.6.1 , how can I change the default python version?
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
This is an interview question from google. I am not able to solve it by myself. Can somebody shed some light?
14 Answers
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Constant Amortized Time
What is meant by "Constant Amortized Time" when talking about time complexity of an algorithm?
6 Answers
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Reading a List from properties file and load with spring annotation @Value
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– Wilhelm Kleu
Oct 25 '12 at 8:05
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Works perfectly with Spring 3.2.
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How can I make pandas dataframe column headers all lowercase?
... XRAT tcgdp
0 Canada CAN 2001 1.54876 9.249094e+05
1 Canada CAN 2002 1.56932 9.572999e+05
2 Canada CAN 2003 1.40105 1.016902e+06
In [64]: df.columns = df.columns.str.lower()
In [65]: df
Out[65]:
country country isocode year xrat ...
How to sort two lists (which reference each other) in the exact same way
Say I have two lists:
13 Answers
13
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Relationship between hashCode and equals method in Java [duplicate]
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– Davide Pugliese
Aug 1 '19 at 14:05
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How can I add new array elements at the beginning of an array in Javascript?
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– dreftymac
Jul 26 '13 at 21:05
25
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JavaScript isset() equivalent
...you often use if(array.foo) { ... } to do the same, but this is not exactly the same statement. The condition will also evaluate to false if array.foo does exists but is false or 0 (and probably other values as well).
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