typescript快速学习笔记

尝试写了一个typescript的接口，语法还是挺好学的。

编辑器用的是vscode，安装了 node-ts

代码如下

interface Person {
firstName: String;
lastName: String;
}

function greeter(person: Person) {
return "Hello " + person.firstName + " " + person.lastName;
}

let user = { firstName: "jack", lastName: "abc" };
console.log(greeter(user));