.getOrCreate()

Returns the entries that match the provided filter. If no data is found, creates and pushes a new one with the provided data into the collection.

getOrCreate(filter, data)

Parameter	Description
filter	Callback Function to test each element of the array. Return a value that coerces to true to keep the element, or to false otherwise. If this parameter is not provided, all data from the collection will be returned
data	Data Entry's data

Returns	Description
Data | Array<Data>	Entries that match the filter or a single entry if the array length is equal to 1 and a filter is provided

// Note: Users is a collection.

Users.create({ name: 'Richard' }); // { name: 'Richard' }

Users.get(); // [{ name: 'Richard' }]
Users.get(u => u.name === 'Henry'); // null

Users.getOrCreate(u => u.name === 'Henry', { name: 'Henry' }); // { name: 'Henry' }
Users.get(); // [{ name: 'Richard' }, { name: 'Henry' }]