<!DOCTYPE html>
<html lang="en-US">
<body>
<script>
var myFruit = new Map([
['red', 'Banana'],
['yellow', 'Guest'],
['green', 'Jackfruit'],
]);
var iterator = myFruit.keys();
for(let key of iterator)
document.write(key + "<br>");
</script> </body>
</html>