Create a Quiz using React

by vsasikalabe Updated: Jan 24, 2023

You create a quiz and give it a name. Then you can add questions and their answers to the quiz. When you're done you can take the quiz in normal or random order. You can also share the quiz with others.A quiz is a game or competition in which someone tests your knowledge by asking you questions.React is a declarative, efficient, and flexible JavaScript library for building user interfaces.The state and props in React are always in an object format. This means that the value could be accessed from the state and props via key-value pair. To access the normal state object, you can use the key name from the object.

Preview of the output that you will get on running this code from your IDE.

Code:

In this solution we use the React library.

Created a Quiz using React, trying to create bookmarking system where users can bookmark questions from quiz

JavaScriptLines of Code : 42License : CC BY-SA 4.0

  {
        qID: 1,
        text: "What is the capital of United States?",
        correctAnswer: "Washington, D.C.",
        incorrectAnswers: ["Philadelphia", "Annapolis", "New York City"]
      }

{
 '0':{1:true},
 '2':{1:false, 2:true , 3:true}
}

  bookmarkQuestion = () => {
    const { currentQuiz, numOfQuestions, quizQuestionBookmarks } = this.state;
    const { questions } = quizzes[currentQuiz];
    const { qID } = questions[numOfQuestions];
    // Can be simplified by creating a function to update nested values, or by using lodash
    // The destructuring is required so other parts of the object are not modified when updated deeper keys
    this.setState({
      quizQuestionBookmarks: {
        ...quizQuestionBookmarks,
        [currentQuiz]: {
          ...quizQuestionBookmarks[currentQuiz],
          [qID]: quizQuestionBookmarks[currentQuiz]
            ? !quizQuestionBookmarks[currentQuiz][qID]
            : true
        }
      }
    });
  };

  getBookmarkedQuestions = () => {
    const { currentQuiz, quizQuestionBookmarks } = this.state;
    const { questions } = quizzes[currentQuiz];
    const boorkmarkedQuestions = questions.filter(question =>
      quizQuestionBookmarks[currentQuiz]
        ? quizQuestionBookmarks[currentQuiz][question.qID]
        : false
    );
    return boorkmarkedQuestions;
  };

Instructions

Follow the steps carefully to get the output easily.

Install the Node.js and React on your IDE(preferable Visual Studio Code).
Create React Application using npx create-react-app foldername.
cd foldername.
Open the folder in IDE.
Copy the code using "copy" button above and create quizzes.js file and paste the code till 10 to quizzes.js file(you can add more questions).After that create quiz.js file and paste the remaining code to that file(refer DEMO for additional files).
Import React and all supporting files.
Open the terminal from IDE.
npm start to run the file.

You can also refer this url DEMO for getting the above output.

I hope you found this useful. I have added the link to dependent libraries, version information in the following sections.

I found this code snippet by searching for Create a Quiz using React in kandi. You can try any such use case!

Environment Tested:

I tested this solution in the following versions. Be mindful of changes when working with other versions.

The solution is created in VS Code 1.73.1 version.
The solution is tested on Nodejs 16.14.2 version.
react 18.2.0 version.

Using this solution, we are able to create a Quiz using React with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to create a Quiz using React.