`forEachCheckpoint`

The forEachCheckpoint method takes a function that it will then call for each Checkpoint in a specified Checkpoints object.

forEachCheckpoint(checkpointCallback: CheckpointCallback): void

	Type	Description
`checkpointCallback`	`CheckpointCallback`	The function that should be called for every Checkpoint.
returns	`void`	This has no return value.

This method is useful for iterating over the structure of the Checkpoints object in a functional style. The checkpointCallback parameter is a CheckpointCallback function that will be called with the Id of each Checkpoint.

Example

This example iterates over each Checkpoint in a Checkpoints object.

const store = createStore().setTables({pets: {fido: {sold: false}}});
const checkpoints = createCheckpoints(store);
store.setCell('pets', 'fido', 'sold', true);
checkpoints.addCheckpoint('sale');

checkpoints.forEachCheckpoint((checkpointId, label) => {
  console.log(`${checkpointId}:${label}`);
});
// -> '0:'
// -> '1:sale'