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論理回路 JavaScript

Last updated at Posted at 2019-12-12

はじめに

差分関数を実装する機会がありましたので、覚書程度に。
適宜追加・修正しようと思っています。
includes()methodを使いましたが、indexOf()methodを使っても実装できるみたいですね。
訂正等あればコメントください。

結論

Web 1920 – 2.jpg

const logical_expression = function (arr1, arr2) {
    let intersection = arr1.filter(e => arr2.includes(e));
    console.log(intersection);
}

logical_expression([1, 2, 3], [2, 3, 5])
    // -> [ 2, 3 ]

Web 1920 – 3.jpg

const logical_expression = function (arr1, arr2) {
    let differenceA = arr1.filter(e => !arr2.includes(e));
    console.log(differenceA);
}
logical_expression([1, 2, 3], [2, 3, 5])
    // ->[ 1 ]

Web 1920 – 4.jpg

const logical_expression = function (arr1, arr2) {
    let differenceB = arr2.filter(e => !arr1.includes(e));
    console.log(differenceB);
}
logical_expression([1, 2, 3], [2, 3, 5])
    // ->[ 5 ]

Web 1920 – 5.jpg

const logical_expression = function (arr1, arr2) {
    let symmetric = arr1
        .filter(e => !arr2.includes(e))
        .concat(arr2.filter(e => !arr1.includes(e)));
    console.log(symmetric);
}
logical_expression([1, 2, 3], [2, 3, 5])
   // ->[ 1, 5 ]
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