CLASSROOMIO-T-199: Exercise Template for React
Merge branch 'main' into CLASSROOMIO-T-199 CLASSROOMIO-T-199: Questions Update CLASSROOMIO-T-199: Added Exercises CLASSROOMIO-T-199: Exercise Template for React Co-authored-by: Rotimi Best <rotimiibitoyeemma@gmail.com> Co-authored-by: Tunji Adeyemi <tunji@digdippa.com> Merge-request: CLASSROOMIO-MR-93 Merged-by: Best Admin <best@digdippa.com>
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Rotimi Best
Rotimi Best
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import { QuestionTypes } from '../utils';
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import type { ExerciseTemplate } from '$lib/utils/types';
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const template: ExerciseTemplate = {
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title: 'React Updating Arrays in State Practical Quiz',
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description: 'Test your practical knowledge of updating arrays in state in React.',
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questionnaire: {
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questions: [
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{
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title: 'How do you add an item to an array in state without mutating the original array in React?',
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name: 'addItemToArray',
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points: 1,
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order: 0,
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question_type: QuestionTypes[0],
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options: [
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{
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label: 'Use the spread operator to create a copy of the array and add the item.',
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is_correct: true,
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},
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{
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label: 'Use the push method to add the item directly to the array.',
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is_correct: false,
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},
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{
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label: 'Replace the entire array with the new item.',
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is_correct: false,
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},
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],
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},
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{
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title: 'What is the purpose of the "concat" method when updating arrays in React?',
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name: 'concatMethodPurpose',
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points: 1,
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order: 1,
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question_type: QuestionTypes[2],
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options: [],
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},
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{
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title: 'How can you remove an item from an array in state without mutating the original array in React?',
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name: 'removeItemFromArray',
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points: 1,
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order: 2,
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question_type: QuestionTypes[0],
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options: [
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{
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label: 'Use the filter method to create a new array without the item.',
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is_correct: true,
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},
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{
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label: 'Use the splice method to remove the item directly from the array.',
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is_correct: false,
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},
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{
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label: 'Set the item to null or undefined to mark it as removed.',
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is_correct: false,
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},
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],
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},
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{
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title: 'What is the recommended approach for updating an array in state when the new state depends on the previous state?',
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name: 'updatingArrayStateDependsOnPreviousState',
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points: 1,
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order: 3,
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question_type: QuestionTypes[1],
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options: [
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{
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label: 'Use a function with the setState method to ensure the latest state is used.',
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is_correct: true,
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},
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{
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label: 'Update the array state directly without considering the previous state.',
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is_correct: false,
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},
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{
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label: 'Use Redux for all array state updates.',
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is_correct: false,
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},
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],
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},
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{
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title: 'What is the purpose of the "map" method when updating arrays of objects in React?',
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name: 'mapMethodPurpose',
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points: 1,
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order: 4,
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question_type: QuestionTypes[2],
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options: [],
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},
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{
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title: 'How do you update an array of objects in state when you want to modify specific properties of an object?',
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name: 'updateArrayObjectProperties',
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points: 1,
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order: 5,
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question_type: QuestionTypes[0],
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options: [
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{
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label: 'Use map to create a new array with the updated object properties.',
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is_correct: true,
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},
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{
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label: 'Modify the object properties directly in the array.',
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is_correct: false,
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},
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{
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label: 'Replace the entire array with the updated object.',
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is_correct: false,
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},
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],
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},
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{
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title: 'What is the recommended approach for updating an array in state when reordering items?',
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name: 'reorderingArrayItems',
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points: 1,
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order: 6,
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question_type: QuestionTypes[0],
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options: [
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{
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label: 'Use the "sort" method to reorder items in the array.',
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is_correct: false,
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},
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{
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label: 'Use a function to reorder items and then update the array.',
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is_correct: true,
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},
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{
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label: 'Always replace the entire array with the reordered items.',
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is_correct: false,
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},
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],
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},
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{
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title: 'What is the purpose of the "slice" method when working with arrays in React?',
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name: 'sliceMethodPurpose',
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points: 1,
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order: 7,
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question_type: QuestionTypes[2],
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options: [],
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},
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{
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title: 'How can you optimize the performance of updating large arrays in React?',
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name: 'optimizeArrayUpdates',
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points: 1,
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order: 8,
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question_type: QuestionTypes[0],
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options: [
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{
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label: 'Use the "slice" method to create a copy of a portion of the array.',
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is_correct: true,
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},
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{
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label: 'Always use "push" for array updates to improve performance.',
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is_correct: false,
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},
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{
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label: 'Use Redux for all array updates to improve performance.',
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is_correct: false,
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},
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],
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},
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{
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title: 'What is the purpose of the "splice" method when updating arrays in React?',
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name: 'spliceMethodPurpose',
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points: 1,
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order: 9,
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question_type: QuestionTypes[2],
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options: [],
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},
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],
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},
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};
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export default template;
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