TypeScript 学习笔记

Basic Types:

  boolean:

TS:var isDone:boolean=false;JS:var isDone = false;

  number:

同上

  string:

同上

  array:

TS:var list:number[]=[1,2,3];     var list:Array<number> = [1, 2, 3];JS:var list=[1,2,3];

  enum:

TS:enum Color {Red,Yellow=2,Black};     var flowerColor:Color=Color.Red;     var secondColor:string=Color[2];JS:var Color;  (function (Color) {      Color[Color["Red"] = 0] = "Red";      Color[Color["Yellow"] = 2] = "Yellow";      Color[Color["Black"] = 3] = "Black";  })(Color || (Color = {}));  ;  var flowerColor = Color.Red;  var secondColor = Color[2];

  any:

等于JS中的普通的声明

  void:

用在函数没有返回，包括JS中的null 和undefined