The [@@iterator]()
method returns a new Iterator
object that iterates over the code points of a String value, returning each code point as a String value.
string[Symbol.iterator]
[@@iterator]()
var string = 'A\uD835\uDC68'; var strIter = string[Symbol.iterator](); console.log(strIter.next().value); // "A" console.log(strIter.next().value); // "\uD835\uDC68"
[@@iterator]()
with for..of
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"
[1] From Gecko 17 (Firefox 17 / Thunderbird 17 / SeaMonkey 2.14) to Gecko 26 (Firefox 26 / Thunderbird 26 / SeaMonkey 2.23 / Firefox OS 1.2) the iterator
property was used (bug 907077), and from Gecko 27 to Gecko 35 the "@@iterator"
placeholder was used. In Gecko 36 (Firefox 36 / Thunderbird 36 / SeaMonkey 2.33), the @@iterator
symbol got implemented (bug 918828).
Created by Mozilla Contributors, license: CC-BY-SA 2.5