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31: Introduction - Coggle Diagram

- - - - accessed from a browser
      - or a mobile device
    - - slack
        
        runs both in the browser
        
        and as a native app
      - vscode
- - - - on command-line
  - - - window
      - document
      - DOM API's
    - - global
        
        > global
        
        outputs
        
        <ref *1> Object [global] { ... setTimeout: fetch: [Function: fetch]
        
        :warning: you don't need to type global
        
        to use the listed methods
        
        > setTimeout(() => console.log("hiya"), 2000)
        
        outputs
        
        hiya
        
        after 2 seconds
      - built-in modules #
        
        for interacting with
        
        the operating system
        
        files & folders
- - - - outside of a browser
    - - in JavaScript
- - - - in REPL type
        
        > process
      - a global object
        
        always available
        
        built-in
      - provides information about the current Node.js process
    - - working with the file system
      - has to be required
        
        unlike process
        
        it's not always in scope
        
        const fs = require('fs');
        
        fs is an object
        
        containing methods and propertes
        
        that allow us to work with the file system
        
        fs.mkdirSync('./mydir');
    - - a built-in function
        
        used to include modules in your project
      - part of the CommonJS module system
        
        the default module system within Node
        
        the original way to package JavaScript code
      - by default
        
        Node treats JavaScript code as CommonJS modules
  - - - objects
      - functions
    - - files of JavaScript code that perform a specific purpose