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<!DOCTYPE html>
<html>
<body>
​
<h2>JavaScript For/In Loop</h2>
​
<p>The for/in statement loops through the properties of an object.</p>
​
<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>
​
<!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_object_for_in by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:28:15 GMT -->
</html>
​
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