使用 immer 不能修改属性 Number of nested object

Question

我正在使用 Angular 2+ 和 Redux 并且很好，但不能用新值修改数量

错误是：TypeError: Cannot assign to read only property 'quantity' of object '[object Object]'

export interface CartState {
    readonly cars: CartCarModel[]
  }

  export class CartCarModel {
    constructor (
      public carId: string,
      public carModel: string,
      public quantity: number,
      public price: number) { }
  }


  const initialState: CartState = {
    cars: []
  }

  function reducerFunc (state: CartState, id: string, quantity: number) {
    const nextState = produce(state, draft => {
    draft.cars.find(d => d.carId === id).quantity = quantity
  })

  return Object.assign({}, state, {
    drinks: nextState
  })
}

Answer 1

因为在 redux 中你不能修改 state 的值你必须复制这些值所以使用map而不是find我希望事情进展顺利