interface MyInterface { myMethod(): void; } // 实现接口 class MyClass implements MyInterface { myMethod() { console.log("Implementing MyInterface"); } } const myObj = new MyClass(); myObj.myMethod(); // 输出 "Implementing MyInterface" // interface 也可以用来定义数据结构 interface Data...
class Control { name: string; constructor() { } select():void { } } interface TabControl extends Control { controlType: string } class Tab implements TabControl { controlType: string; name: string; select():void { } } const tab: TabControl = new Tab() tab.name = 'TabControl' tab.con...
We can also create classes implementing interfaces. 例子: class Car { printCar = () => { console.log("this is my car") } }; interface NewCar extends Car { name: string; }; class NewestCar implements NewCar { name: "Car"; constructor(engine:string) { this.name = engine } print...
我们可以用 interface 去 extend type: 用class 实现 type: 用class 实现 type 和 interface 的混合: type intersection 的用法,使用 & 连接多个 type: 使用partial 将部分 type 的字段变成 optional: Hybrid Types with both type alias and interface 您可能偶尔想要定义一个对象,它既充当函数又充当对象,并具有...
A class implementing an interface must adhere to its structure. interfaces_with_classes.ts interface Drivable { start(): void; stop(): void; } class Car implements Drivable { start(): void { console.log("Car started."); } stop(): void { console.log("Car stopped."); } } const my...
Static TypeScript hasnominal typingfor classes, rather than thestructural typingof TypeScript. In particular, it does not support:interfacewith same name as aclasscasts of a non-classtype to aclassinterfacethat extends a aclassinheriting from a built-in typethisused outside of a methodfunction...
A class implementing an interface needs to strictly conform to the structure of the interface. 实现接口的类需要严格遵循接口的结构。 interface IClock { currentTime: Date; setTime(d: Date): void; } class Clock implements IClock { currentTime: Date = new Date(); ...
用class 实现 type 和 interface 的混合: type intersection 的用法,使用 & 连接多个 type: 使用partial 将部分 type 的字段变成 optional: Hybrid Types with both type alias and interface 您可能偶尔想要定义一个对象,它既充当函数又充当对象,并具有附加属性。
function createUndefinedClassArray(length: number): Array<AbstractClass> { const arr: Array<AbstractClass> = []; for (let i = 0; i < length; i++) { arr.push(new (class implements MyInterface { myMethod() { console.log("This is an undefined class implementing MyInterf...
//1: Directly creating objectsconstjohn:Person={name:"John",message:()=>{return"Hello, I am "+john.name;}};//2: From an existing object having similar structureconstnewObject:Person={...existingObject};//3: Creating a class implementing interfaceclassEmployeeimplementsPerson{...}constjohn=...