Created
January 27, 2015 20:05
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8 進数。p('1234') === 668。
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| p = (s) -> | |
| m = s.match /[0-7]+/ | |
| if m is null | |
| return NaN | |
| r = 0 | |
| for c, i in (m[0].split '').reverse() | |
| n = parseInt c, 10 | |
| r += n * Math.pow 8, i | |
| if s[0] is '-' then -r else r | |
| t = (s) -> | |
| Object.is (p s), (parseInt s, 8) |
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