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How to check if array is empty or does not exist? [duplicate]
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Clone Object without reference javascript [duplicate]
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If you use an = statement to assign a value to a var with an object on the right side, javascr...
How to ignore a property in class if null, using json.net
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What does the “map” method do in Ruby?
...e from the block (the original object is unchanged unless you use map!):
[1, 2, 3].map { |n| n * n } #=> [1, 4, 9]
Array and Range are enumerable types. map with a block returns an Array. map! mutates the original array.
Where is this helpful, and what is the difference between map! and each...
Can we have functions inside functions in C++?
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Safe characters for friendly url [closed]
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How do I check if a string contains another string in Objective-C?
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edited Apr 2 '19 at 16:05
answered May 2 '10 at 16:20
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