type alias Temporal.DurationOptions
Unstable
Options for assigning fields using `Duration.prototype.with()` or entire
objects with `Duration.from()`, and for arithmetic with
`Duration.prototype.add()` and `Duration.prototype.subtract()`.
optional
overflow: "constrain" | "balance"
How to deal with out-of-range values
- In `'constrain'` mode, out-of-range values are clamped to the nearest
in-range value.
- In `'balance'` mode, out-of-range values are resolved by balancing them
with the next highest unit.
The default is `'constrain'`.