• A function passed as an argument to another function, to be called at a later point, typically when an operation completes or an event occurs. Callbacks are commonly used in JavaScript for handling asynchronous operations such as network requests or user interactions.

1. Related terms: Callback queue · Generator function · Function · Reactive Extensions for JavaScript
2. Previous term: Call to action
3. Next term: Callback queue
4. Random term: OOM (webglossary.info/random 🎲)