Storing Data with JSON

The video tutorial covers how to store data in a notes application using JSON and the FS module in JavaScript. It explains the JSON format, its integration with JavaScript, and how to use JSON.stringify and JSON.parse methods. The tutorial also demonstrates reading and writing JSON data to the file system, providing a comprehensive understanding of JSON's role in data handling within applications.

What is the primary purpose of using the FS core module in the notes application?

• To save notes data to the file system

• To create a user interface

• To manage user authentication

• To handle network requests

Which format is used to store and structure data in the notes application?

• YAML

• JSON

• CSV

• XML

What is a key feature of JSON that makes it easy to work with in JavaScript?

• It is similar to arrays and objects

• It is a binary format

• It is only used for configuration files

• It requires a special parser

What is the purpose of the Playground directory in the course?

• To store final projects

• To experiment with new topics

• To save user data

• To manage course materials

What does JSON.stringify do in JavaScript?

• Parses a JSON string to an object

• Converts an object to a JSON string

• Saves data to a database

• Converts a string to an object

How can you read JSON data from a file in Node.js?

• Using JSON.stringify

• Using FS.readFileSync

• Using JSON.parse

• Using console.log

What is the result of using JSON.parse on a JSON string?

• An XML document

• A binary buffer

• A JavaScript object

• A JSON string

In the challenge, what properties are you required to change in the JSON data?

• Name and age

• Age and planet

• Planet and country

• Name and planet

What method is used to write JSON data to a file in Node.js?

• FS.readFileSync

• FS.writeFileSync

• JSON.stringify

• JSON.parse

What is the final step in the challenge after modifying the JSON data?

• Delete the JSON file

• Create a new JSON file

• Send the data to a server

• Run the script to verify changes