Ts学习总结（11/18）——类型

由于错过了直播，只好自己看文档总结了。

1. 布尔类型(boolean)

   const type: boolean = true;
   

2. Number 类型

   const type: number = 1;
   

3. String 类型

   const type: string = "string";
   

4.  Enum 类型

   enum People{
     white,
     yellow,
     black,
   }
   
   const person: Color = Peole.white;
   console.log(white); // 0
   

5. 数组类型(array)

   const arry1: number[] = [1, 2, 3];
   const arry2: Array<number> = [1, 2, 3];
   

6. 元组类型(tuple)

   const type: [string, number] = ["string", 1];
   

7. Symbol

   const sym1 = Symbol("string");
   const sym2 = Symbol("string");
   console.log(Symbol("string") === Symbol("string"));
   

8. any

   const type: any 
   

9. null 和 undefined

   let type1: undefined = undefined;
   let type2: null = null;