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dynamically add and remove view to viewpager
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After figuring out which ViewPager methods are called by ViewPager and which are for other pur...
mongodb group values by multiple fields
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TLDR Summary
In modern MongoDB releases you can brute force this with $slice just off the bas...
How can I remove a specific item from an array?
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Sort a list by multiple attributes?
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A key can be a function that returns a tuple:
s = sorted(s, key = lambda x: (x[1], x[2]))
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How to reverse a singly linked list using only two pointers?
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How to read a large file - line by line?
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The correct, fully Pythonic way to read a file is the following:
with open(...) as f:
for...
How can I get a list of locally installed Python modules?
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Why does the indexing start with zero in 'C'?
...be denoted as array[0].
For more info:
http://developeronline.blogspot.com/2008/04/why-array-index-should-start-from-0.html
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What does the ^ operator do in Java?
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422
The ^ operator in Java
^ in Java is the exclusive-or ("xor") operator.
Let's take 5^6 as exam...
Finding index of character in Swift String
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