2023-02-26 01:30

getting-started/09_event_emitter.js

@@ -0,0 +1,11 @@
+const Events = require("events");
+const eventEmitter = new Events();
+
+eventEmitter.on('start', () => { console.log("onStart") });
+
+eventEmitter.emit('start');
+
+// one time listener
+eventEmitter.once('start', () => { console.log("onStart") });
+
+eventEmitter.off('start');