為鍵分配值
要為鍵指定值,請使用 .set()
方法。它返回 WeakMap 物件,因此你可以連結 .set()
呼叫。
const obj1 = {},
obj2 = {};
const weakmap = new WeakMap();
weakmap.set(obj1, 1).set(obj2, 2);
console.log(weakmap.get(obj1)); // 1
console.log(weakmap.get(obj2)); // 2
要為鍵指定值,請使用 .set()
方法。它返回 WeakMap 物件,因此你可以連結 .set()
呼叫。
const obj1 = {},
obj2 = {};
const weakmap = new WeakMap();
weakmap.set(obj1, 1).set(obj2, 2);
console.log(weakmap.get(obj1)); // 1
console.log(weakmap.get(obj2)); // 2