Add Live Preview extension from Microsoft to Visual Studio
Open the root index.html and click on the right corner logo to open the Live Preview. Example Above
- try npm -v to see if npm is installed
apt-get update && apt-get install npmfor installing npm if it is not installed in yout machinenpm installinstall npm dependencies in package.jsonnpm runsee the npm commands defined in package.jsonnpm run devexecute dev command to run a developer server and open the url on the browser