Arbitrary number of emit() arguments using rest/spread

src/index.ts

@@ -88,13 +88,13 @@ export default function mitt<Events extends Record<EventType, unknown>>(
 		 * @param {Any} [evt] Any value (object is recommended and powerful), passed to each handler
 		 * @memberOf mitt
 		 */
-		emit<Key extends keyof Events>(type: Key, evt?: Events[Key]) {
+		emit<Key extends keyof Events>(type: Key, ...evt?: Events[Key]) {
 			let handlers = all!.get(type);
 			if (handlers) {
 				(handlers as EventHandlerList<Events[keyof Events]>)
 					.slice()
 					.map((handler) => {
-						handler(evt!);
+						handler(...evt!);
 					});
 			}
 
@@ -103,7 +103,7 @@ export default function mitt<Events extends Record<EventType, unknown>>(
 				(handlers as WildCardEventHandlerList<Events>)
 					.slice()
 					.map((handler) => {
-						handler(type, evt!);
+						handler(type, ...evt!);
 					});
 			}
 		}

test/index_test.ts

@@ -197,5 +197,13 @@ describe('mitt#', () => {
 			inst.emit('bar', eb);
 			expect(star).to.have.been.calledOnce.and.calledWith('bar', eb);
 		});
+
+		it('spreaded arguments', () => {
+			const Func = spy();
+			events.set('Func', [Func]);
+
+			inst.emit('Func', ...[1,2,3]);
+			expect(Func).to.have.been.called.and.calledWith(1,2,3);
+		});
 	});
 });