The Complete React Developer Course (with Hooks and Redux) - The useReducer Hook

The Complete React Developer Course (with Hooks and Redux) - The useReducer Hook

Assessment

Interactive Video

Information Technology (IT), Architecture, Social Studies

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial introduces the useReducer hook in React, comparing it to Redux for managing complex state changes. It explains how to set up and implement useReducer, including defining reducer functions and dispatching actions. The tutorial demonstrates integrating useReducer into React components, focusing on adding and removing notes. It concludes with a summary of useReducer's benefits and a code cleanup, highlighting the simplicity and reusability of separating logic from components.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one of the main advantages of using useReducer over Redux?

It allows for more complex state management.

It eliminates the need for reducers.

It simplifies passing props manually.

It is faster than Redux.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must be defined before calling useReducer in a component?

A dispatch function

A reducer function

A state variable

An action type

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the default behavior if an action type is not recognized in a reducer?

Throw an error

Return null

Return the current state

Reset the state

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does useReducer return when called in a component?

A function to update state

An array with state and dispatch function

A single state object

A list of actions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you add a new note using useReducer?

By directly modifying the state

By calling a setState function

By dispatching an add_note action

By using a useEffect hook

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the dispatch function in useReducer?

To connect components

To trigger state updates

To define the reducer function

To initialize the state

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main benefit of using useReducer for complex state?

It simplifies the component logic

It eliminates the need for state

It reduces the number of components

It increases the performance

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?