JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Webpack / 156

This video tutorial introduces Webpack, a tool for bundling JavaScript files, essential for front-end development. It explains how Webpack creates a dependency graph to intelligently bundle files into a single output. The tutorial covers setting up Webpack from scratch, including creating a configuration file and testing the setup. It also introduces Babel for transforming code to ensure compatibility with older browsers.

What is the primary function of Webpack in front-end development?

• To compile TypeScript files

• To bundle multiple JavaScript files into one

• To minify CSS files

• To optimize images

In the context of Webpack, what is a dependency graph?

• A list of all JavaScript files in a project

• A map of how files depend on each other

• A chart showing the size of each file

• A graph showing the execution time of scripts

What is the purpose of the transformation phase in Webpack?

• To delete unused files

• To add external code and make changes like converting code versions

• To generate documentation

• To create a backup of the project

What is the first step in setting up Webpack from scratch?

• Writing JavaScript code

• Installing Webpack and Webpack CLI

• Creating a new HTML file

• Setting up a database

Which file is created to store Webpack configuration?

• main.js

• webpack.config.js

• package.json

• index.html

What command is used to initialize a new NPM project?

• npm start

• npm install

• npm init

• npm run

What is the output file name specified in the Webpack configuration?

• app.js

• main.js

• bundle.js

• output.js

How can you test if Webpack is set up correctly?

• By checking the console for errors

• By running a server

• By opening the index.html file

• By compiling the files and checking the output

What change is observed in the code after Webpack processes it?

• The code is deleted

• The code is converted to TypeScript

• The variable names may be altered

• The code is split into multiple files

What additional tool is mentioned for converting newer code to older versions?

• TypeScript

• Babel

• Sass

• Gulp