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JavaScriptでUUIDを生成する方法(ライブラリなし)

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JavascriptでランダムなIDを生成する方法

JavaScriptでUUIDをライブラリなしで作成する関数を下記に記載。

hoge.js
const uuid = () =>
  ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, (c) =>
    (
      c ^
      (crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4)))
    ).toString(16)
  );

結果

result.js
console.log(uuid())

// 396246c5-d076-4b39-a6d5-4dbc74996bdf

参照

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