Map[Symbol.species]

Baseline

20169

Map[Symbol.species] Map

Map[Symbol.species]

get [Symbol.species] (this) Map

[Symbol.species] Map

: Map

[Symbol.species] Map Map

Map[Symbol.species]; //  Map()

Map MyMap MyMap species MyMap Map

class MyMap extends Map {
  // MyMap  species  Map 
  static get [Symbol.species]() {
    return Map;
  }
}


ECMAScript 2027 LanguageSpecification # sec-get-map-%symbol.species%

MDN

MDN 2025818

GitHub