Create Modern Quiz With React JS?

Learn a modern Quiz app demo here

Hey, Welcome to react series My Name, Rajdeep Singh.

In series, we learn to reactjs, but we create a small react project—the Project Name quiz-app.

download code on GitHub: react-quiz-app

Demo Here: click here

Watch The Demo on code sandbox And Download Code


  1. Create React App
  2. Learn Folder Str.
  3. Index.js File
  4. Demo Data
  5. Components

Create React App:

First, Create New React Project on your laptop use This command:

npx create-react-app quiz-app 
cd quiz-app
npm start

Learn Folder Str.

In the Src folder

Components folder 3 components file And a Data file

Src folder str

Index.js File

Index.js main file in the file str. we add CSS file and import component file on index.js

We import the Header and Quiz component to this place.

The Most Important is to create a render Method here.

index.js file code

Style For Quiz:

All Styles for the body, header, MainDiv as card, And a button. Create on this file

Style CSS

Demo Data:

In the data.js file, I create a variable Name Quizdata. We assign data from of array in the Quizdata variable.

Each index, we create an object. in the object, we add an id, Quiz, FindAnswer, and rightanswers

In FindAnswer We add the array with three values

Data.js file



Header component we return a simple h1 tag for the app title



Quiz components work with 5 step

1 step:

Create the state. In-State we create an object. in this object, we create a dataQuestion variable with an array

2 step

We create a function. function name setStateFunstion in this function use react setState method And set data form data.js

3 step

ComponentDidMount simple we call setStateFunstion

4 step

In this step, we use a map() Function. Map () function work with a JavaScript array. In this array map() get data and then we return h2 and Answer component.

Answer Components access data help props we provide here




use two-step we learn Answer.js

1 step:

Create a state with 3 parameters first Answer, second clickCheck, and third rightAnaswer.

2 step

We use javascript ternary operator, map function, and event function to clickCheck true to get value to return a button. In this button, we call an Event function.

When some buddy clicks on the button, this button function call The setState method set false on clickCheck.

Then the ternary operator runs false code to get answer data so simple.




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Rajdeep singh

Rajdeep singh

JavaScript || Reactjs || Nextjs || Python || Rust || Biotechnology || Bioinformatic || Front-end Developer || Writer ||