2020-11-02

Interface 接口

测试interface Person { readonly id: number; // 只读 name: string; age...

2020-11-02

数组和元祖

声明数字类型的数组let arrOfNumbers: number[] = [1, 2, 3] // arrOfNumbers.push('123') /...

2020-11-02

TS原始数据类型和Any类型

原始数据类型let isDone: boolean = false let age: number = 10 let firstName: string ...