假设我管理了pizzera,我想知道当天的第一个订单何时到达。
我有两个类:Orders
(存储订单)和Events
。我正在调用一个函数getCurrentEvents()
来检查订单是否是当天的第一个订单。
问:我应该何时将Orders
参数传递给getCurrentEvents()
?此外,你能否给我一个提示,这个主题是如何调用的,所以我可以阅读更多有关类似设计问题的内容?
在创建Orders
实例时传递Events
,直接在函数
class Pizzeria {
constructor() {
this.orders = new Orders()
// pass Orders here
this.events = new Events(this.orders)
}
getCurrentEvents() {
this.events.getCurrentEvents();
}
}
class Events {
constructor(orders) {
this.orders = orders;
}
getCurrentEvents() {
this.firstOderOfTheDay();
}
firstOrderOfTheDay() {
...do something with this.orders
}
}
在创建Orders
实例时再次传递Events
,但将其传递给函数
class Pizzeria {
constructor() {
this.orders = new Orders()
this.events = new Events(this.orders)
}
getCurrentEvents() {
this.events.getCurrentEvents();
}
}
class Events {
constructor(orders) {
this.orders = orders;
}
getCurrentEvents() {
// pass Orders here
this.firstOderOfTheDay(this.orders);
}
firstOrderOfTheDay({ orders }) {
...do something with passed orders
}
}
在创建Events
实例后传递它
class Pizzeria {
constructor() {
this.orders = new Orders()
this.events = new Events()
}
getCurrentEvents() {
// pass Orders here
this.events.getCurrentEvents(this.orders);
}
}
class Events {
getCurrentEvents(orders) {
this.firstOderOfTheDay(orders);
}
firstOrderOfTheDay({ orders }) {
...do something with orders
}
}