安全に[[配列 (JavaScript)|配列]]の順番をひっくり返す[[配列 (JavaScript)|Arrayオブジェクト]]のメソッド。 ```js const xs = ["a", "i", "u"]; console.log(xs.toReversed()); // ["u", "i", "a"] console.log(xs); // ["a", "i", "u"] ``` <button class="playground"><a href="https://www.typescriptlang.org/play?target=99&ts=5.2.2#code/MYewdgzgLgBAHhGBeGBtARAQ3QGhugS13wFd0BdAbgFgAoUSEAGwFMA6JkAcwAoE2oIAEosAbiwBOEFgBMeASnk1aAehVp0ZPIWJYKdBhGbtOvBErpqN2bUW1lyQA">Playground</a></button>