JSON.stringify Guide: Rules & Features

JSON.stringify() is a built-in function used to convert a JavaScript object into a JSON string. Its features and conversion rules are as follows:

1. The JSON.stringify() method converts a JavaScript object into a JSON string and returns the result.
2. During the conversion process, undefined, functions, and symbol values will be ignored.
3. If the property value is a function, undefined, or symbol, it will be ignored during the serialization process.
4. An error will be thrown if the object contains circular references (i.e. objects referring to each other).
5. When dealing with objects that contain circular references, you can handle the situation of circular references by passing a function as the second parameter.
6. You can control the indentation and formatting of the JSON string by passing a third parameter.
7. For a Date object, it will be converted into a date string in ISO format.
8. For the RegExp object, it will be converted into an empty object.
9. Errors will be thrown for other built-in objects such as Map, Set, BigInt, Symbol, and Undefined.