Question

上课：

class Something {    
  constructor(something) {
   this._something = something; 
  }

  get something() {
    return this._something;
  }
}

我希望能够将访问器值传播到一个新对象中，例如：

const somethingObject = new Something(12);
const somethingSpread = { ...somethingObject };

但是，它仅输出类的_something属性：

{ _something: 12 }

但是我要寻找的是这样的：

{ something: 12 }

我还尝试了Object.assign，它的输出与上面相同：

const somethingAssigned = Object.assign({}, somethingObject);
// Output: { _something: 12 }

有可能做到这一点吗？

Answer 1

只需尝试：

class Something {
   private _something: Number;
   constructor(something: Number) {
     this._something = something;
   }

   public get something(): Number {
     return this._something;
   }

   public set something(value: Number) {
     this._something = value;
   }
}

function shallowClone(obj) {
   return Object.create(
   Object.getPrototypeOf(obj),
   Object.getOwnPropertyDescriptors(obj)
);

const var1 = new Something(12);
const var2 = shallowClone(var1);

console.log(var1, var1.something);
console.log(var2, var2.something);

输出：

某事{_something：12} 12
{_something：12} 12

将类getter输出传播到对象

1 个答案: