This function is not supported by all the browser and its behavior may change in future. uneval() function creates a string representation of the source code of an Object. In uneval, we can pass java-script code as well but try to avoid this as much as possible.

<!DOCTYPE html> <html> <head> <title>Welcome to LearnKode - A code learning platform</title> </head> <body> <button onclick="unevaluateCode()">Unevaluate code</button> <p id="sample"></p> <script> function unevaluateCode() { var x = 20; var y = "30"; var a = uneval(x) + "<br>"; var b = uneval(y) + "<br>"; var result = a + b; document.getElementById("sample").innerHTML = result; } </script> </body> </html>