JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Babel / 154

This video tutorial introduces Babel, a tool for converting modern JavaScript code into a format compatible with older browsers. It covers using Babel with Node.js, running JavaScript files, and handling common errors during conversion. The tutorial also explains how to integrate converted code into HTML and manage dependencies using npm.

Which modern JavaScript feature allows you to define variables with block scope?

• function

• const

• let

• var

What is the purpose of using an arrow function in JavaScript?

• To declare a constant

• To log messages to the console

• To define a function with a shorter syntax

• To create a new variable

Why might you not see any output when running a JavaScript file with Node.js?

• The file is not saved

• The file is empty

• The functions are not called

• Node.js is not installed

What is the main purpose of Babel in JavaScript development?

• To minify JavaScript code

• To convert modern JavaScript into a format compatible with all browsers

• To run JavaScript code on the server

• To debug JavaScript code

What is a common issue when running Babel on Windows PowerShell?

• Memory overflow error

• Syntax error

• Admin access required error

• File not found error

How can you reinstall all required dependencies for a project?

• By running 'npm update'

• By running 'npm install'

• By copying node_modules from another project

• By deleting node_modules

What should you include when sharing your project files with others?

• The package.json file and your project files

• Only the package.json file

• Only the node_modules folder

• All installed dependencies