Function js_sys::JSON::stringify_with_replacer_and_space

pub fn stringify_with_replacer_and_space(
    obj: &JsValue,
    replacer: &JsValue,
    space: &JsValue,
) -> Result<JsString, JsValue>

The JSON.stringify() method converts a JavaScript value to a JSON string.

The replacer argument is a function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string.

The space argument is a String or Number object that’s used to insert white space into the output JSON string for readability purposes. If this is a Number, it indicates the number of space characters to use as white space; this number is capped at 10 (if it is greater, the value is just 10). Values less than 1 indicate that no space should be used. If this is a String, the string (or the first 10 characters of the string, if it’s longer than that) is used as white space. If this parameter is not provided (or is null), no white space is used.

MDN documentation