Stringify on Class Objects

This is an example program that shows limitations of stringify() on class objects in JavaScript. Notice that private members and methods are not copied.

StringifyClassObjects.html

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width" />
		<title>XoaX.net's Javascript</title>
		<!-- Supply a transparent 1x1 favicon -->
		<link rel="icon" href="data:,">
		<script type="text/javascript" src="StringifyClassObjects.js"></script>
	</head>
	<body onload="Initialize()">
		<h1>Stringify()</h1>
		<span id="idObject1"></span>
		<h2>Versus</h2>
		<h1>PrintAnObject()</h1>
		<span id="idObject2"></span>
	</body>
</html>

StringifyClassObjects.js

function Initialize() {
	let qObject = new CMan();	

	let qElement = document.getElementById("idObject1");
	
	// All member functions, whether public or private, are ignored, as well as private members.
	let sJson = JSON.stringify(qObject, (key, value) => {
		if (typeof value === "function") {
			return value.toString();
		}
		return value;
	});
	
	qElement.innerHTML = sJson;
	
	document.getElementById("idObject2").innerHTML = PrintAnObject("qObject", qObject);
}

class CMan {
	#mdAge;
	constructor() {
		this.msName = "Jesus Christ";
		this.#mdAge = 30.5;
	}
	#IsGod() {
		return true;
	}
	IsMan() {
		return true;
	}
}

function PrintAnObject(sName, qObject, sPre = "") {
  let sOutput = typeof(qObject) + " " + qObject.constructor.name + ": " + sName + '<br />';
  for (let sProperty in qObject) {
  	if (typeof(qObject[sProperty]) == "object") {
	    sOutput += PrintAnObject(sProperty, qObject[sProperty], sPre + "&nbsp;&nbsp;&nbsp;&nbsp;");
	  } else {
	  	sOutput += sPre+"&nbsp;&nbsp;&nbsp;&nbsp;"+typeof(qObject[sProperty])+': '+sProperty+' = '+qObject[sProperty]+'<br />';
	  }
  }
  return sPre + sOutput;
}