TS 学习笔记 1

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于 2022-02-23 00:31:07 首次发布

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TS 学习笔记 1

安装

vscode 安装，code.visualstudio.com
node.js 安装, nodejs.org
借助npm 安装 tsc, npm i -g tsc
终端执行tsc，权限修改，set-ExecutionPolicy RemoteSigned
配置编译，这样就不用每次都tsc index.ts 了；tsc --init ; 便会生成tsconfig.json
安装包 ts-node ;

示例

var userName: string = "kyriewang"

var userId: number = 1

var isShow: boolean = false

isShow = true

var unType: undefined = undefined

var nullType: null = null

//var arr: Array<string> = []

var arr: string[] = []
arr.push("kyriewang")

let typeArr: [string, number]
typeArr = ["kyriewang", 18]

enum typeS {
    typeString,
    typeNumber,
    typeNull
}

var typeStr: any;

let vTs: void;
vTs = undefined;

var func: Function = () => { }
func = function name(params: number) {

}
console.log("hello");

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>TypeScript</title>
</head>
<body>
    <script src="index.js">
    </script>
</body>
</html>