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【JavaScript】Mapの値を配列に変換する

Last updated at Posted at 2020-09-22

#はじめに
Mapで格納した値のvaluesのみを抽出して配列に変換したい時に使えるTipsです。

#一般的な方法

index.js
const sampleMap = new Map();
sampleMap.set(1, 'a');
sampleMap.set(2, 'b');
const values = Array.from(sampleMap.values());
// ["a", "b"]

#スプレッド演算子を用いた方法

index.js
const sampleMap = new Map();
sampleMap.set(1, 'a');
sampleMap.set(2, 'b');
const values =[...sampleMap.values()];
// ["a", "b"]
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