References

summary
public	C BackwardRange
public	C ForwardRange
public	C Range
public	F * backwardRangeIterator(start: number, stop: number, step: number): IterableIterator<number> Yields values in a range, separated by a fixed negative constant called step.
public	F * forwardRangeIterator(start: number, stop: number, step: number): IterableIterator<number> Yields values in a range, separated by a fixed positive constant called step.
public	F range(start: number, stop: number, step: number): ForwardRange \| BackwardRange Constructs a Range whose iterator yields values in an interval, separated by a fixed constant called step.
public	F rangeArgs(start: number, stop: number, step: number): [number, number, number] Resolve arguments for range and rangeIterator.
public	F rangeIterator(start: number, stop: number, step: number): IterableIterator<number> Yields values in a range, separated by a fixed constant called step.