How do iterators work in different programming languages?

How do iterators work in different programming languages?

Iterators are objects that allow you to traverse through a collection, like lists or arrays, in various programming languages. Would you like examples from specific languages?

Yes, can you explain iterators in Python and JavaScript?

In Python, you can use the iter() function to create an iterator from a list. In JavaScript, you can use the Symbol.iterator method to define an iterator for an object. Would you like to see code examples?

That would be great! Show me the code for both.

Sure! In Python:

my_list = [1, 2, 3]
iterator = iter(my_list)
print(next(iterator))  # Outputs: 1

In JavaScript:

const myArray = [1, 2, 3];
const iterator = myArray[Symbol.iterator]();
console.log(iterator.next().value);  // Outputs: 1