Forked from CurtisHumphrey/fisher_yates_shuffle.coffee
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January 21, 2016 14:36
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Fisher-Yates shuffle (in-place) in coffeescript
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| ### | |
| Randomize array element order in-place. | |
| Using Fisher-Yates shuffle algorithm. | |
| ### | |
| Array.prototype.shuffle = -> | |
| for i in [(@length - 1) .. 0] | |
| j = Math.floor(Math.random() * (i + 1)) | |
| [@[i], @[j]] = [@[j], @[i]] | |
| @ |
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