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20 lines
418 B
CoffeeScript
20 lines
418 B
CoffeeScript
nums: i * 3 for i in [1..3]
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negs: x for x in [-20..-5*2]
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negs: negs[0..2]
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result: nums.concat(negs).join(', ')
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puts result is '3, 6, 9, -20, -19, -18'
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# Ensure that ranges are safe. This used to infinite loop:
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j = 5
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result: for j in [j..(j+3)]
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j
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puts result.join(' ') is '5 6 7 8'
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# With range comprehensions, you can loop in steps.
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results: x for x in [0..25] by 5
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puts results.join(' ') is '0 5 10 15 20 25' |