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up vote 5 down vote favorite

I have a ruby array, and I want to sort all elements starting with index i till index j, in place. The rest of the array should not be modified. How can I implement this?

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Partition, sort, join. I don't think there's a readable one-liner. –  CodeGnome 18 mins ago
    
Well-worded question. @CodeGnome, admit it: you've been proved wrong. :-) –  Cary Swoveland 11 mins ago

1 Answer 1

up vote 7 down vote

You can use the a[i, j] = a[i, j].sort() to sort from index i to index j. Example:

a = [8, 7, 5, 4, 3]
a[2..4] = a[2..4].sort()
a # => [8, 7, 3, 4, 5]
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I was going to comment it won't do what OP wants, but the change is good –  texasbruce 55 mins ago
    
Very nice, it seems you're on a roll today. –  Cary Swoveland 13 mins ago

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