Set And Weakset In Javascript

// removes foo from the set ws.has(foo); 위에서 weakmap의 구조를 이해했다면 weakset의 특징도 이해할 수 있을꺼라 생각됩니다. It does not include arbitrary values.

Let weakmap = new weakmap(); // weakset {{.}} john = null; The weakset is weak, meaning references to objects in a weakset are held weakly.

Unlike arrays, however, sets and weaksets cannot store duplicate values.

The weakset object lets you store weakly held objects in a collection. Nor they can be created by an array or another set. Const ws = new weakset(); Var set = new set ([1, 2, 3, 4]);