how to use javascript vscode code example

Example 1: type checking js vscode

//type checking all js files (vscode)  

//in settings.json:
 "javascript.implicitProjectConfig.checkJs": true

//also gives you ability to enable TypeScript features like auto-import on save

Example 2: how to run javascript in visual studio code

// install live server and then right click on your index.html and the keep the browser ready

Example 3: how to run js file in vs code

Simply open the .js file in question in VS Code, 
  switch to the 'Debug Console' tab, hit the debug button 
  in the left nav bar, and click the run icon (play button)!