What's the equivalent of java jsonObject.escape in javascript

Question

I can't find the equivalent of the escape method that exists for java here https://www.tutorialspoint.com/json_simple/json_simple_escape_characters.htm

text = jsonObject.escape(text);

in javascript ?

Answer 1

The documentation you refer to, gives this Java example:

Example

import org.json.simple.JSONObject;

public class JsonDemo {
   public static void main(String[] args) {
      JSONObject jsonObject = new JSONObject();
      String text = "Text with special character /\"\'\b\f\t\r\n.";
      System.out.println(text);
      System.out.println("After escaping.");
      text = jsonObject.escape(text);
      System.out.println(text); 
   } 
} 

Output

Text with special character /"'
. 
After escaping. 
Text with special character \/\"'\b\f\t\r\n. 

The same can be achieved in JavaScript as follows:

let text = "Text with special character /\"\'\b\f\t\r\n.";
console.log(text);
console.log("After escaping.");
text = JSON.stringify(text).slice(1, -1); // Encode and remove the wrapping double quotes.
console.log(text);

There is one difference in the output: the JSON.simple Java library escapes the forward slash, JavaScript's JSON.stringify doesn't.

JSON does not require the slash to be escaped. Note also that the above mentioned documentation does not list it as a "reserved character", so JSONObject.escape() escapes a bit more than is essential (but it doesn't hurt).