What function is used to serialize a JavaScript object into a JSON string?

The function that is used to serialize a JavaScript object into a JSON string is JSON.stringify(). This method takes a JavaScript object and transforms it into a JSON string, making it suitable for storage or transmission. Serialization is the process of converting an object into a format that can be easily saved or sent over a network, and JSON (JavaScript Object Notation) is a widely used format for such purposes due to its simplicity and readability.

When you invoke JSON.stringify(), it converts the properties of the object into a structured string following the JSON format. This process is essential when you need to send data to a server, store it in a file, or share it between different parts of a web application.

For instance, if you have an object like { name: "Alice", age: 25 }, using JSON.stringify() will result in the string '{"name":"Alice","age":25}'. This string can then be sent in an API request or stored in a web browser's local storage.

The alternatives mentioned do not function as required for this task. JSON.parse(), for instance, is utilized for converting a JSON string back into a JavaScript object, while JSON.format() and JSON.convert() are not standard methods in the JavaScript JSON object