Iterator Protocol Implementation

Background

The iterator protocol enables custom objects to work with for-of loops, spread syntax, and destructuring.

Problem

Create a Range class that implements the iterable protocol, allowing it to be used with for-of loops and spread syntax.

Input

A start number, an end number, and an optional step.

Output

An iterable that yields numbers from start to end.

Sample tests

Input: new Range(1, 5)

Expected: [1, 2, 3, 4, 5]

Your solution

Learning objective

Understand the iterable protocol, Symbol.iterator, and generator functions.