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What is the difference between Ruby 1.8 and Ruby 1.9
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Array.to_s Now Contains Punctuation
Ruby 1.9
irb(main):001:0> [1,2,3].to_s
=> "[1, 2, 3]"
Ruby 1.8.6
irb(main):001:0> [1,2,3].to_s
=> "123"
Action: Use .join instead
Colon No Longer Valid In When Statements
Ruby 1.9
irb(main):001:0> case 'a'; when /\w/: puts 'word'; end...
How do you remove duplicates from a list whilst preserving order?
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31 Answers
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Move an array element from one array position to another
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31 Answers
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Reverse Range in Swift
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Update For latest Swift 3 (still works in Swift 4)
You can use the reversed() method on a range
for i in (1...5).reversed() { print(i) } // 5 4 3 2 1
Or stride(from:through:by:) method
for i in stride(from:5,through:1,by:-1) { print(i) } // 5 4...
What is the significance of initializing direction arrays below with given values when developing ch
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3 Answers
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Sorting a Python list by two fields
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BrechtDeMan
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answered Mar 6 '11 at 19:38
mouadmouad
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How to Correctly Use Lists in R?
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Why do these two expressions not return the same result?
x = list(1, 2, 3, 4); x2 = list(1:4)
A list can contain any other class as each element. So you can have a list where the first element is a character vector, the second is a data frame, etc. In this case, you have created two different ...
How to perform element-wise multiplication of two lists?
...gahooagahooa
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Pandas get topmost n records within each group
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3 Answers
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Algorithm to return all combinations of k elements from n
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