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@mzmttks

# Underscore で 2つの配列の内容が同一化どうかをしらべる

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# 目的

Underscore.js を使って、２つの配列が順番に限らず同一かを比較したい。

たとえば、

``````x = [1, 2, 5, 3]
y = [1, 3, 2, 5]
comp(x,y) = true
``````
``````x = [1, 2, 5, 3]
y = [1, 3, 2, 4]
comp(x, y) = false
``````
``````x = [1, 2, 5, 3]
y = [1, 3, 2]
comp(x, y) = false
``````

# こうやる

``````function comp(x, y){
return _.all(_.map(_.zip(x.sort(), y.sort()), function(pair){return pair[0] === pair[1];}));
}
``````
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ハイラブル株式会社の代表取締役。博士(情報学) カエルの研究をしてました。会話の定量化や分析をしてます。