Bundlers like webpack, gulp are tools that help us compile our sass and css files, concatenate our js files and minify them; but we do have to set up config file for doing it which gets complex on a big project.
Parcel helps here to do the same without configuration
Install
npm install -g parcel-bundler
yarn global add parcel-bundler
Create a package.json file in your project directory using npm init -y
or yarn init -y
Code your files index.html style.scss script.js ..
parcel index.html
It will create a dist folder with updated and minfied code for deploying
Open localhost:1234