TypeScript - 基礎類型

• string
• number
• array

  string [], string[][]: [['A','B']]

• enum (枚舉)

        enum LiveStatus {
                SUCCESS = 0,
                FAIL = -1,
                STREAMING = 1
        }

        const status = LiveStatus.SUCCESS

• union

        const status: number | string

• type

        type A = number | string
        const name : A

• interface

interface User {
        name: string;
        age: number;
}

• object

• function

function A (a: string, b: string) {
        return a+b
}

function B (a: string, b: string): number {
        return 100
}

• unkown

type Data = {
        name: string;
        desc: string
}

type Beta = {
        age: number;
}

const beta = data1 as unkown as Beta

進階類型