Require Node.js 14 and move to ESM

Author: sindresorhus

.github/workflows/main.yml

@@ -10,15 +10,16 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
+          - 18
           - 16
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install
       - run: npm test
-      - uses: codecov/codecov-action@v1
-        if: matrix.node-version == 14
-        with:
-          fail_ci_if_error: true
+      # - uses: codecov/codecov-action@v3
+      #   if: matrix.node-version == 16
+      #   with:
+      #     fail_ci_if_error: true

examples/clock.js

@@ -1,7 +1,6 @@
 #!/usr/bin/env node
-'use strict';
-
-const Emittery = require('..');
+import process from 'node:process';
+import Emittery from '../index.js';
 
 class Clock extends Emittery {
 	constructor() {

examples/clocktyped.ts

@@ -1,11 +1,13 @@
 #!/usr/bin/env npx ts-node
-import {setInterval} from 'timers';
-import Emittery = require('..');
+/* eslint-disable @typescript-eslint/no-floating-promises */
+import process from 'node:process';
+import {setInterval} from 'node:timers';
+import Emittery from '../index.js';
 
-interface TickData {
+type TickData = {
 	now: number;
 	duration: number;
-}
+};
 
 // Map Clock's events emitting data to the type of their data.
 type EventDataMap = {
@@ -17,7 +19,7 @@ type EventDataMap = {
 
 class Clock extends Emittery<EventDataMap> {
 	private startedAt = 0;
-	private timer: NodeJS.Timer | null = null;
+	private timer: NodeJS.Timer | undefined = null;
 
 	public constructor() {
 		super();

examples/emit.js

@@ -1,18 +1,20 @@
 #!/usr/bin/env node
-
-'use strict';
-
-const Emittery = require('..');
+import Emittery from '../index.js';
 
 const myEmitter = new Emittery();
 
 // Register listener
-myEmitter.on('event', () => console.log('an event occurred!'));
-myEmitter.onAny(eventName => console.log('"%s" event occurred!', eventName));
+myEmitter.on('event', () => {
+	console.log('an event occurred!');
+});
+
+myEmitter.onAny(eventName => {
+	console.log('`%s` event occurred!', eventName);
+});
 
 // Emit event in next tick
 myEmitter.emit('event');
 
 // Prints:
 // 		an event occurred!
-// 		"event" event occurred!
+// 		`event` event occurred!

examples/emitonce.js

@@ -1,18 +1,16 @@
 #!/usr/bin/env node
-
-'use strict';
-
-const Emittery = require('..');
+import Emittery from '../index.js';
 
 const myEmitter = new Emittery();
 
 // Register listener for only the one event
-myEmitter.once('event')
-	.then(count => console.log('an event occurred (#%d).', count));
+(async () => {
+	console.log('An event occurred (#%d).', await myEmitter.once('event'));
+})();
 
 // Emit events in next tick
 myEmitter.emit('event', 1);
 myEmitter.emit('event', 2);
 
 // Prints:
-//		an event occurred (#1).
+//		An event occurred (#1).

examples/eventdata.js

@@ -1,14 +1,11 @@
 #!/usr/bin/env node
-
-'use strict';
-
-const Emittery = require('..');
+import Emittery from '../index.js';
 
 const myEmitter = new Emittery();
 
 // Does not provide a context either.
-myEmitter.on('event', function ({a, b}, ...args) {
-	console.log(a, b, args, this);
+myEmitter.on('event', function ({a, b}, ...arguments_) {
+	console.log(a, b, arguments_, this);
 });
 
 // Only accept one event data parameter