Class StatelyMachine<T, C>

Updates the machine to the new state and optional context.

Emits a StatelySuccess on a successful transition.

Emits a SAME_STATE error if you try to transition to the active state, or a NO_TRANSITION error if you try to transition to a state without a valid transition.

Example

machine.go(States.AnotherState, { foo: foo + 1 })

Emits a StatelySuccess only for the given state.

Example

machine.on$(States.AnotherState).subscribe(console.log)
// ==> { from: 'SomeState', to: 'AnotherState', context: { anyProps: 'any values' } }

Emits a StatelyError only for the given StatelyErrorType.

Example

machine.onError$('SPECIFIC_STATELY_ERROR_TYPE').subscribe(console.error)
// ==> { from: 'SomeState', to: 'AnotherState', type: 'SPECIFIC_STATELY_ERROR_TYPE' }

Declare all valid transitions for the machine.

Emits an EMPTY_TRANSITIONS error on go if you forget to set the transitions.

Example

machine.transitions([
 { from: [States.SomeState], to: [States.AnotherState] },
 { from: [States.AnotherState], to: Object.values(States) }
])