vscode TSLint 插件报错异常

Question

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

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

let user = { firstName: "Jane", lastName: "User" };

document.body.innerHTML = greeter(user);

这段代码ts代码编译没问题
但是TSLint却报了一个很诡异的错

类型“{ firstName: string; lastName: string; }”的参数不能赋给类型“Person”的参数。
  Type '{ firstName: string; lastName: string; }' is missing the following properties from type 'Person': name, age, getName

明明接口没有定义name, age, getName为啥说我缺失？

Answer 1

重启 vscode 试试，有时候 vscode 的 ts 检测会有延迟和错乱。