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リストをシャッフルする

Posted at

たまーに使う、リスト要素をランダムに並べ替える方法を、いくつかの言語について調べてみた。

Perl
use List::Util qw/shuffle/;

say shuffle 0..9;

List::Utilにshuffleがある

Python
import random

list = range(10)
random.shuffle(list)
print list
Ruby
list = (0..9).to_a
puts list.shuffle
JavaScript
var list = [0,1,2,3,4,5,6,7,8,9];
console.log(_.shuffle(list));

underscore.js

自前でやりたい時は、Fisher-Yates法というのを使うのがよいようだ

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