change signature in typings for loadDatabase

CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres
 to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.2.2] - 2022-03-10
+### Fixed
+- [#21](https://github.com/seald/nedb/issues/21) Typings for loadDatabase now support a callback.
+
 ## [2.2.1] - 2022-01-18
 ### Changed
 - [#20](https://github.com/seald/nedb/pull/20) storage.js: check fsync capability from return code rather than using process.platform heuristics (Thanks [@bitmeal](https://github.com/bitmeal)).

index.d.ts

@@ -17,7 +17,7 @@ declare class Nedb<G = any> extends EventEmitter {
 
   persistence: Nedb.Persistence;
 
-  loadDatabase(): void;
+  loadDatabase(callback?: (err: Error | null) => void): void;
 
   getAllData<T extends G>(): T[];
 

typings-tests.ts

@@ -16,6 +16,12 @@ let db = new Datastore()
 db = new Datastore({ filename: 'path/to/datafile' })
 db.loadDatabase()
 
+// Type 2 bis: Persistent datastore with manual loading with a callback
+db = new Datastore({ filename: 'path/to/datafile' })
+db.loadDatabase((err: Error | null) => {
+  // should not fail
+})
+
 // Type 3: Persistent datastore with automatic loading
 db = new Datastore({ filename: 'path/to/datafile_2', autoload: true })
 // You can issue commands right away