Understanding Events in JavaScript

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary focus of the interesting behavior of a system?

Long-term changes of state that persist over time
Changes to the state of the system as a whole (correct)
Changes to the state of the system's components
User interactions with the document

What is the purpose of detecting changes of state in a Web application?

To ignore the changes and maintain the current state
To know that the changes have occurred and respond accordingly (correct)
To create a new system component
To store the changes explicitly in the system

What is an event in the context of JavaScript?

A user interaction with the document that is not detectable
An action that occurs in a browser that JavaScript can detect and respond to (correct)
A change occurring in the document itself that is not programmable
A long-term change of state that persists over time

What is the primary purpose of programming JavaScript event handlers?

To provide for many styles of human-computer interaction (C) Signup and view all the answers

What is the term used to describe a style of programming that dominates event handling?

Event-based programming (A) Signup and view all the answers

What is the relationship between events and user interactions with the document?

Events are generally related to user interactions with the document, although some are related to changes occurring in the document itself (D) Signup and view all the answers