Nifty ToU (Time of Use)
Nifty ToU is a delightful little JavaScript library for working with time-of-use based tariffs. It aims to be easy to use, reliable, and without any external dependencies.
A central class in Nifty ToU is TemporalRangesTariff, that defines a set of tariff values with a set of time-based constraints. The implication is that the tariff values apply only when all the time-based constraints are valid.
The time-based constraints are encoded as IntRange objects, that are integer ranges with minimum and maximum values that define the bounds of the constraint. The supported time-based constraints are:
| Constraint | Example | Bounds |
|---|---|---|
| month range | January - March | 1 - 12 (January - December, inclusive) |
| day of month range | 1 - 31 | 1 - 31 (inclusive) |
| day of week range | Monday - Friday | 1 - 7 (Monday - Sunday, inclusive) |
| minute of day range | 00:00 - 08:30 | 0 - 1440 (inclusive minimum, exclusive maximum) |