Parsing JSON Using Reviver

This is an example program that shows how to parse data types with a reviver function in a JSON string in JavaScript.

ParseJsonUsingReviver.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="ParseJsonUsingReviver.js"></script>
	</head>
	<body onload="Initialize()">
		<span id="idObject"></span>
	</body>
</html>

ParseJsonUsingReviver.js

function Initialize() {
	const sJsonText = '{ "Products": [ {"Name":"Apple", "Price":1.25}, {"Name":"Pear", "Price":0.98}, {"Name":"Banana", "Price":0.73} ] }';
	// The second argument is the reviver function and it is called on each key-value pair.
	const qJsonObject = JSON.parse(sJsonText, function (sKey, qValue) {
		if (sKey == "Price") {
			// Give a 10% discount on the prices
			return qValue*.9;
		} else {
			return qValue;
		}
	});
	
	document.getElementById("idObject").innerHTML =  PrintAnObject("qJsonObject", qJsonObject, sPre = "");
}

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;
}