Transitions
Transitions
A type which is used to define valid states and transitions for a state machine based on FSM.
Example
type LightColor = 'Green' | 'Amber' | 'Red';
const trafficLightTransitions: Transitions<LightColor> = {
Green: {
to: ['Amber'],
},
Amber: {
to: ['Red'],
},
Red: {
to: ['Green'],
},
};
The mergeStrategy property defines how to handle the merging of states when one set of
transitions is being merged with another (as in the case of defining a {@link CustomerOrderProcess})
Signature
type Transitions<State extends string, Target extends string = State> = {
[S in State]: {
to: Readonly<Target[]>;
mergeStrategy?: 'merge' | 'replace';
};
}