classroomio/apps/dashboard/src/lib/mocks/react/031_react_useCallBack.ts

import { QuestionTypes } from '../utils';

import type { ExerciseTemplate } from '$lib/utils/types';

const template: ExerciseTemplate = {
  title: 'React useCallback Hook Quiz',
  description: 'Test your knowledge about the React useCallback hook.',
  questionnaire: {
    questions: [
      {
        title: 'What is the primary purpose of the useCallback hook in React?',
        name: 'q1',
        points: 1,
        order: 0,
        question_type: QuestionTypes[0], // RADIO
        options: [
          { label: 'Managing component state', is_correct: false },
          { label: 'Optimizing performance by memoizing functions', is_correct: true },
          { label: 'Creating functional components', is_correct: false }
        ]
      },
      {
        title: 'How do you import the useCallback hook in a React component?',
        name: 'q2',
        points: 1,
        order: 1,
        question_type: QuestionTypes[0], // RADIO
        options: [
          { label: 'import { useCallback } from "react";', is_correct: true },
          { label: 'import React, { useCallback } from "react";', is_correct: false },
          { label: 'import useCallback from "react";', is_correct: false }
        ]
      },
      {
        title: 'What is memoization in the context of the useCallback hook?',
        name: 'q3',
        points: 1,
        order: 2,
        question_type: QuestionTypes[0], // RADIO
        options: [
          { label: 'It is a technique to optimize component rendering', is_correct: false },
          {
            label: 'It is a process of storing and reusing the result of a function call',
            is_correct: true
          },
          { label: 'It is a way to manage component state', is_correct: false }
        ]
      },
      {
        title: 'When should you use the useCallback hook?',
        name: 'q4',
        points: 1,
        order: 3,
        question_type: QuestionTypes[0], // RADIO
        options: [
          { label: 'Only when creating class components', is_correct: false },
          {
            label: 'When you need to memoize a function to prevent unnecessary re-renders',
            is_correct: true
          },
          { label: 'When you want to manage component state', is_correct: false }
        ]
      },
      {
        title:
          'What is the second argument passed to the useCallback function, and why is it important?',
        name: 'q5',
        points: 1,
        order: 4,
        question_type: QuestionTypes[0], // RADIO
        options: [
          {
            label:
              'An array of dependencies; it specifies when the memoized function should recompute',
            is_correct: true
          },
          {
            label: 'A callback function; it runs after the memoized function is called',
            is_correct: false
          },
          {
            label: 'A configuration object; it determines the memoization strategy',
            is_correct: false
          }
        ]
      },
      {
        title: 'In which scenarios can the useCallback hook help improve performance?',
        name: 'q6',
        points: 1,
        order: 5,
        question_type: QuestionTypes[1], // CHECKBOX
        options: [
          { label: 'Optimizing functions passed as props to child components', is_correct: true },
          { label: 'Reducing memory usage in class components', is_correct: false },
          { label: 'Preventing infinite loops in render', is_correct: false },
          { label: 'Enhancing the speed of network requests', is_correct: false }
        ]
      },
      {
        title: 'What is the primary difference between the useMemo and useCallback hooks?',
        name: 'q7',
        points: 1,
        order: 6,
        question_type: QuestionTypes[0], // RADIO
        options: [
          {
            label: 'useMemo memoizes values, while useCallback memoizes functions',
            is_correct: true
          },
          {
            label:
              'useMemo is used for creating reusable components, while useCallback is for state management',
            is_correct: false
          },
          {
            label: 'There is no difference between them; they are interchangeable',
            is_correct: false
          }
        ]
      },
      {
        title: 'When should you avoid using the useCallback hook?',
        name: 'q8',
        points: 1,
        order: 7,
        question_type: QuestionTypes[1], // CHECKBOX
        options: [
          { label: 'When you want to re-render components frequently', is_correct: true },
          { label: 'When you have functions with no dependencies', is_correct: true },
          { label: 'When you are working on a small-scale project', is_correct: false },
          { label: 'When you need to optimize the rendering of large lists', is_correct: true }
        ]
      },
      {
        title: 'What is the purpose of memoization in React?',
        name: 'q9',
        points: 1,
        order: 8,
        question_type: QuestionTypes[0], // RADIO
        options: [
          { label: 'To cache and reuse the results of expensive calculations', is_correct: false },
          { label: 'To eliminate the need for state management in components', is_correct: false },
          {
            label: 'To optimize performance by preventing unnecessary re-renders',
            is_correct: true
          }
        ]
      },
      {
        title: 'Which React hook can be used to memoize a function and prevent re-renders?',
        name: 'q10',
        points: 1,
        order: 9,
        question_type: QuestionTypes[0], // RADIO
        options: [
          { label: 'useCallback', is_correct: true },
          { label: 'useEffect', is_correct: false },
          { label: 'useState', is_correct: false }
        ]
      }
    ]
  }
};

export default template;