23 lines
584 B
CoffeeScript
23 lines
584 B
CoffeeScript
# An in-place selection sort.
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selection_sort: list =>
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len: list.length
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# For each item in the list.
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for i in [0...len]
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# Set the minimum to this position.
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min: i
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# Check the rest of the array to see if anything is smaller.
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(min: j if list[j] < list[min]) for j in [i+1...len]
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# Swap if a smaller item has been found.
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[list[i], list[min]]: [list[min], list[i]] if i isnt min
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# The list is now sorted.
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list
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# Test the function.
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print(selection_sort([3, 2, 1]).join(' ') is '1 2 3')
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print(selection_sort([9, 2, 7, 0, 1]).join(' ') is '0 1 2 7 9') |