Function range

range(start, stop?, step?): IterableIterator<number>
Create an iterator of evenly spaced values.
Parameters
- start: number
  The starting value for the range, inclusive.
- Optional stop: number
  The stopping value for the range, exclusive.
- Optional step: number
  The distance between each value.
Returns IterableIterator<number>
An iterator which produces evenly spaced values.

Notes
In the single argument form of range(stop), start defaults to 0 and step defaults to 1.

In the two argument form of range(start, stop), step defaults to 1.

Example
```
import { range } from '@lumino/algorithm';

let stream = range(2, 4);

Array.from(stream);  // [2, 3]
```
- Defined in range.ts:37