Learn JavaScript from Scratch JavaScript for Everyone - Callback Functions

The video tutorial explains JavaScript's event-driven nature, focusing on functions and callbacks. It introduces the setTimeout function, demonstrating how it delays code execution. The tutorial highlights the complexity of nested callbacks and encourages hands-on practice with setTimeout to understand its behavior in JavaScript's event-driven environment.

What makes JavaScript a powerful language according to the video?

• Its event-driven nature

• Its support for object-oriented programming

• Its ability to handle large datasets

• Its compatibility with all browsers

What is a callback in JavaScript?

• A function that is used to handle errors

• A function that runs in parallel with other functions

• A function that is executed after another function completes

• A function that is executed immediately

How does the setTimeout function work in JavaScript?

• It executes a function immediately

• It delays the execution of a function for a specified time

• It cancels the execution of a function

• It repeats the execution of a function at regular intervals

What is the primary purpose of using setTimeout in JavaScript?

• To execute a function immediately

• To delay the execution of a function

• To cancel a function execution

• To execute a function repeatedly

What happens when a callback function is used in JavaScript?

• The function is ignored

• The function is executed after a specified event or time

• The function is executed in parallel with other functions

• The function is executed immediately