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<!DOCTYPE html> <html> <body> <p id="demo"></p> <script> var txt = ""; var person = {fname:"John", lname:"Doe", age:25}; var x; for (x in person) { txt += person[x] + " "; } document.getElementById("demo").innerHTML = txt; </script> </body> <!-- Subhodaya tutorials/js/tryit.asp?filename=tryjs-object_for_in by , Thu, 28 Jul 2016 08:12:36 Subhodaya --> </html>