Salesforce JavaScript Developer Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

The correct answer, `JSON.stringify(object)`, is the method specifically designed in JavaScript to convert JavaScript objects into JSON string format. The `JSON.stringify()` function takes an object as input and produces a string representation of that object in JSON format, which is often used for data exchange between a client and server.

This method handles different data types effectively and can convert objects, arrays, and even special object features like nested structures into a valid JSON string that can be easily transmitted or stored. It's essential in scenarios such as preparing data for API requests or local storage applications.

In contrast, using `JSON.parse(object)` refers to converting a JSON string back into a JavaScript object, which is the opposite operation. The `object.toJson()` method does not exist in standard JavaScript; this could refer to a method from a library or framework, but it is not a built-in JavaScript function. Lastly, employing `String(object)` simply converts the object to a string without considering the JSON format, which might not yield a properly structured JSON representation. Therefore, `JSON.stringify(object)` is the definitive and correct choice for converting an object to JSON format.