Question

How do I link a JavaScript file to a HTML file?

Answer 1

Iterable: 

An Iterable represents a collection which can be traversed.  

Implementing the Iterable interface allows an object to make use of for-each loop. 

• It does that by internally calling the iterator () method on the object. 

Iterator:  

An Iterator, on the other hand, is an interface which allows us to iterate over some other object which can be a collection of any kind. 

To iterate over an Iterator, we use hasNext() + next() methods in a while loop.