Callback

gen_server Behaviour

Master the gen_server OTP behaviour — the standard pattern for building stateful, message-handling server processes with synchronous and asynchronous calls.

Callback Functions in JavaScript

Understand callback functions, the difference between synchronous and asynchronous callbacks, and the callback hell problem.

The Error-First Callback Pattern

The Node.js convention of passing an error as the first callback argument for consistent async error handling.

What is a Callback in OOP?

A callback in OOP is a piece of executable behavior, typically an object implementing an interface or a functional reference, that is passed into another metho…