diff --git a/extras/README.md b/extras/README.md
index 20992a5..60fc7b7 100644
--- a/extras/README.md
+++ b/extras/README.md
@@ -60,7 +60,7 @@ import {fromInterval} from 'sub-events/ext';
 
 const onInterval = fromInterval(1000); // creating 1-second interval event
 
-const sub = onInterval.subscribe((count: number) => {
+const sub = onInterval.subscribe(() => {
     // handling the interval event
 });
 
diff --git a/extras/src/from-emitter.ts b/extras/src/from-emitter.ts
index 2c6a3fd..5715047 100644
--- a/extras/src/from-emitter.ts
+++ b/extras/src/from-emitter.ts
@@ -2,7 +2,7 @@ import {IEmitOptions, SubEventCount} from '../../src';
 import {EventEmitter} from 'events';
 
 /**
- * Creates event from emitter, for one-argument, strongly-typed events.
+ * Creates a named event from emitter, for one-argument, strongly-typed events.
  *
  * If your event takes multiple arguments, see fromEmitterArgs below.
  */
@@ -24,7 +24,7 @@ export function fromEmitter<T = unknown>(target: EventEmitter, event: string | s
 }
 
 /**
- * Creates event from emitter, for multi-argument, any-type events.
+ * Creates a named event from emitter, for multi-argument, any-type events.
  *
  * The emitted arguments are passed into the handler as an array.
  */
diff --git a/extras/src/from-event.ts b/extras/src/from-event.ts
index a724628..ca80f54 100644
--- a/extras/src/from-event.ts
+++ b/extras/src/from-event.ts
@@ -1,9 +1,7 @@
 import {SubEventCount, IEmitOptions} from '../../src';
 
 /**
- * Example of sharing a generic Event, based on the subscription count:
- * - we call `addEventListener` whenever the first subscriber has been registered;
- * - we call `removeEventListener` after the last subscription has been cancelled.
+ * Creates a strongly-typed, named DOM Event wrapper.
  */
 export function fromEvent<T extends Event>(target: EventTarget, event: string, options?: IEmitOptions): SubEventCount<T> {
     const sec: SubEventCount<T> = new SubEventCount();
diff --git a/extras/src/from-timeout.ts b/extras/src/from-timeout.ts
index 1910eb4..54ac666 100644
--- a/extras/src/from-timeout.ts
+++ b/extras/src/from-timeout.ts
@@ -13,8 +13,7 @@ export function fromTimeout(timeout: number = 0, options?: IEmitOptions): Timeou
 /**
  * Implements timeout event, with automatically cancelled subscriptions.
  *
- * It also illustrates the general approach to implementing events with
- * self-cancel subscription logic.
+ * A new timeout is automatically created for every subscriber.
  */
 export class TimeoutEvent extends SubEvent<void> {
     constructor(timeout: number = 0, options?: IEmitOptions) {