Values

Simple, typed, immutable value classes/records for TS.

The goal is to have:

• Simple definition of a value's schema
• Full Immutability
• Being able to provide default values
• Builders on the value class's instances
• Full typing for getters/builder setters
• Per-class customization of JSON serialization/deserialization

Example

type MeasurementOptions = {
  magnitude: number;
  unit: 'cm' | 'ft';
};

const defaults = { magnitude: undefined, unit: 'cm' as 'cm' };
const Measurement = createValue<MeasurementOptions, typeof defaults>(defaults);

const measurement = Measurement({ magnitude: 100, unit: 'cm' });
const measurement2 = measurement.toBuilder().magnitude(200).unit('ft').build();