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Lab 3-Nodejs- Setup ES_Enviroment (Cài đặt môi trường (Nodejs (Buoc 2:Kiem…

- - - - $node --version
      - $npm --version
  - - - $git --version
- - - - $npm init
    - - package.json
        
        name
        
        main
        
        scripts
    - - index.js
      - modify package.json
        
        [scripts] "start":"node index.js"
    - - cli
        
        $npm start
    - - 1-cli
        
        $npm install babel-cli --save-dev
        
        $npm install babel-preset-es2015 --save-dev
        
        $npm install babel-preset-es2017 --save-dev
        
        $npm install nodemon --save
      - 3-config .babelrc
        
        {"presets":["es2015","es2017"]}
      - 4-modify package.json
        
        [scripts] "start":"nodemon --exec babel-node ./index.js"
      - 2-tạo file .babelrc
        
        windows
        
        1-Run:notepad .babelrc
        
        2-Run box: %homepath%
        
        copy vào project folder
        
        linux
        
        1-touch .babelrc
    - - 1-cli
        
        $npm install express --save
      - 2-update index.js
        
        import express from 'express';
        
        var app=express();
        
        var PORT=3000;
        
        var server=app.listen(PORT,()=>{console.log("Listening on port: "+server.address().port);});
      - 3-Run Test:$npm start