Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Learn Listening and Responding to Events | Understanding Node.js Event-Driven Architecture
Node.js Events and Process Management

bookListening and Responding to Events

index.js

index.js

copy

When you register multiple listeners for the same event using the on method, Node.js stores them in the order they were added. When the event is emitted, all listeners are called synchronously, one after another, in this order. This means the first listener registered runs first, followed by the next, and so on. If a listener is removed using removeListener or off, it will no longer respond to future emissions of that event. This mechanism gives you fine control over how your application responds to events and allows you to adjust event flow dynamically at runtime.

question mark

Which statement best describes how Node.js handles multiple listeners for the same event?.

Select the correct answer

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 1. ChapterΒ 5

Ask AI

expand

Ask AI

ChatGPT

Ask anything or try one of the suggested questions to begin our chat

Suggested prompts:

Can you show an example of registering and removing event listeners in Node.js?

What happens if a listener throws an error during event emission?

How can I check which listeners are currently registered for an event?

Awesome!

Completion rate improved to 7.69

bookListening and Responding to Events

Swipe to show menu

index.js

index.js

copy

When you register multiple listeners for the same event using the on method, Node.js stores them in the order they were added. When the event is emitted, all listeners are called synchronously, one after another, in this order. This means the first listener registered runs first, followed by the next, and so on. If a listener is removed using removeListener or off, it will no longer respond to future emissions of that event. This mechanism gives you fine control over how your application responds to events and allows you to adjust event flow dynamically at runtime.

question mark

Which statement best describes how Node.js handles multiple listeners for the same event?.

Select the correct answer

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 1. ChapterΒ 5
some-alt