what is [1:] using len function to find length?
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Understanding slice notation
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What is a canonical way to find the actual maximum argument list length?
66620
How do I get the number of elements in a list?
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How can I get the size of an array, a Collection, or a String in Java?
56939
Where is array's length property defined?
143783
What is the best way to get the count/length/size of an iterator?
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How to "grep" for line length in a given range?
98034
Difference between Array.length = 0 and Array =[]?
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Lengths and when to use them
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A program to find length of string
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Is list::size() really O(n)?
28198
How do I determine the size of an object in Python?
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How do you determine the size of a file in C?
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PHP String Length Without strlen()
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How do I find the length of an array?
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What are the trailing number of the zeroes in the given integer
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what is sizeof() operator doing in C++