HTML CSS and JavaScript for Beginners - A Web Design Course - JSON as Data

The video tutorial covers the basics of JSON, its use in JavaScript, and how it facilitates data transfer in web development through AJAX. It explains JSON data types, including numbers, strings, booleans, arrays, and objects, and compares JSON with XML and YAML. The tutorial also highlights the differences between JSON and JavaScript objects, emphasizing the importance of understanding these distinctions for effective programming.

What is one of the main reasons for using JSON in programming?

• It is a complex format for data storage.

• It is only used for server-side programming.

• It is a neat format for data handling.

• It is difficult to read and write.

How does Ajax enhance the interaction between a web browser and a server?

• By using only HTML and CSS for data transfer.

• By allowing the browser to send requests and receive data asynchronously.

• By making the server send data only in XML format.

• By requiring the user to refresh the page for updates.

Which of the following is NOT a data type available in JSON?

• Number

• String

• Function

• Boolean

In JSON, how are keys and values separated?

• By a colon

• By a dash

• By a comma

• By a semicolon

Which data type in JSON is used to store multiple values in a single variable?

• Array

• Number

• String

• Boolean

What is a key difference between JSON and XML?

• JSON is less human-readable than XML.

• XML uses opening and closing tags, while JSON does not.

• XML is more compact than JSON.

• JSON cannot be used for data transfer.

What is a limitation of JSON compared to JavaScript objects?

• JSON can include functions.

• JSON keys must be quoted.

• JSON can use single quotes for strings.

• JSON can have duplicate keys.