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String.prototype[@@iterator]() - JavaScript | MDN

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String.prototype[@@iterator]()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since сентябрь 2015 г..

Сводка

Метод [@@iterator]() возвращает новый объект итератора Iterator, который проходит по кодовым точкам строкового значения, возвращая каждую кодовую точку в виде строкового значения.

Синтаксис

string[Symbol.iterator]

Примеры

Пример: использование метода [@@iterator]()

js
var string = "A\uD835\uDC68";

var strIter = string[Symbol.iterator]();

console.log(strIter.next().value); // "A"
console.log(strIter.next().value); // "\uD835\uDC68"

Пример: использование метода [@@iterator]() вместе с циклом for..of

js
var string = "A\uD835\uDC68B\uD835\uDC69C\uD835\uDC6A";

for (var v of string) {
  console.log(v);
}
// "A"
// "\uD835\uDC68"
// "B"
// "\uD835\uDC69"
// "C"
// "\uD835\uDC6A"

Спецификации

Specification
ECMAScript® 2026 Language Specification
# sec-string.prototype-%symbol.iterator%

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