The Modern JavaScript Bootcamp (2019) - Exploring Babel

The Modern JavaScript Bootcamp (2019) - Exploring Babel

Assessment

Interactive Video

•

Information Technology (IT), Architecture

•

University

•

Practice Problem

•

Hard

Created by

Wayground Content

FREE Resource

The video tutorial introduces Babel, a tool for converting modern JavaScript code into a format compatible with all browsers. It demonstrates Babel's functionality in a browser and explains how to install and configure Babel locally using NPM. The tutorial covers code transformation, including converting 'const' to 'var' and handling classes, and guides viewers through setting up Babel presets for local projects.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of using Babel in JavaScript development?

To add new features to JavaScript.

To convert JavaScript code into a different programming language.

To enhance the performance of JavaScript code.

To make JavaScript code compatible with all browsers by converting modern features into older ones.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'try it out' page on Babel's website allow you to do?

Submit feedback about Babel.

See how Babel transforms your local code without installing anything.

Download Babel for offline use.

Access Babel's source code.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When using Babel, what happens to a 'const' declaration in older browsers?

It is removed from the code.

It is converted to 'var'.

It is converted to 'let'.

It remains unchanged.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the 'class call check' method added by Babel?

To add new methods to the class.

To remove unused code from the class.

To ensure the class code works correctly in older browsers.

To optimize the class for performance.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you verify that Babel CLI has been installed correctly?

By opening the Babel application.

By running the command 'babel --version'.

By checking the system settings.

By checking the Babel website.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the '-G' flag when installing Babel CLI?

To install Babel CLI locally.

To install Babel CLI globally.

To uninstall Babel CLI.

To update Babel CLI.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in setting up a project to use Babel locally?

Run 'npm init' to set up the project.

Write JavaScript code.

Create a new HTML file.

Install Babel globally.

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