Basic JSON Interview question and answers

 

1. What is JSON?
Answer: JSON stands for JavaScript Object Notation.
It is a lightweight data-interchange format used for exchanging and storing data.

2. What are the benefits of using JSON?
Answer: JSON is easy to read and understand, it is lightweight and can be parsed quickly,
it is language-independent, and it is supported by many programming languages.

3. What are the main components of JSON?
Answer: The main components of JSON are objects, arrays, strings, numbers, 
booleans, and null.

4. How do you parse JSON data?
Answer: JSON data can be parsed using the JSON.parse() method in JavaScript.

5. How do you convert JSON data to a string?
Answer: JSON data can be converted to a string using the JSON.stringify() method in 
JavaScript.

6. What is the difference between JSON and XML?
Answer: JSON is simpler and more compact than XML. JSON does not require end tags and
does not support attributes, while XML does.

7. How do you access JSON data?
Answer: JSON data can be accessed using the dot notation or bracket notation in JavaScript.

8. What is the syntax for creating a JSON object?
Answer: The syntax for creating a JSON object is { "key": "value" }.

9. What is the difference between JSON and JavaScript objects?
Answer: JSON is a text-based data format, while JavaScript objects are objects in the
programming language.

10. How do you validate JSON data?
Answer: JSON data can be validated using various online tools such as JSONLint
or using the JSON.parse() method in JavaScript.

Comments

Popular posts from this blog

Inserting and Moving elements inside Ruby Array

ServiceNow Interview Questions