What does JSON.parse do?

What does JSON.parse do?

• A. Parses a JSON string
• B. Converts a JSON string to a JavaScript value
• C. Serializes a JavaScript value to JSON
• D. Converts a JavaScript value to YAML

Answer: (B)

JSON.parse reads a JSON-formatted string and returns the corresponding JavaScript value. The result can be an object, array, number, string, boolean, or null, depending on what the JSON text represents. For example, parsing '{"name":"Alex","age":30}' yields a JavaScript object { name: "Alex", age: 30 }. If the string isn’t valid JSON, it throws an error. The opposite operation is JSON.stringify, which converts a JavaScript value into JSON text. Converting a JavaScript value to YAML is not what JSON.parse does.

JSON.parse reads a JSON-formatted string and returns the corresponding JavaScript value. The result can be an object, array, number, string, boolean, or null, depending on what the JSON text represents. For example, parsing '{"name":"Alex","age":30}' yields a JavaScript object { name: "Alex", age: 30 }. If the string isn’t valid JSON, it throws an error. The opposite operation is JSON.stringify, which converts a JavaScript value into JSON text. Converting a JavaScript value to YAML is not what JSON.parse does.