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Challenge: Array Operations | Variables and Data Types
Introduction to JavaScript
course content

Course Content

Introduction to JavaScript

Introduction to JavaScript

1. Basic Concepts
2. Variables and Data Types
3. Basic Operations
4. Conditional Statements
5. Loops
6. Functions

bookChallenge: Array Operations

Task

  1. Create an array named myArray with the given data: ["Heine", 25, "Bob", 16].
  2. Remove the last element, 16, from the array.
  3. Add a new element with the value 21 to the end of the array.
  4. Replace the second element with the value 27 using indexing.
  5. Print the updated array to the console.
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let ___ = ["Heine", 25, "Bob", 16]; myArray.___(); myArray.___(21); myArray[___] = 27; console.log(___);
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The output should be :

  1. Use the pop() method to remove an element from the end of an array.
  2. Use the push() method to add an element to the end of an array.
  3. Access the second element in the array using the index 1.
  4. To log the array data to the console, use the console.log() with the array name.
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let myArray = ["Heine", 25, "Bob", 16]; // Step 1 myArray.pop(); // Step 2 myArray.push(21); // Step 3 myArray[1] = 27; // Step 4 console.log(myArray); // Step 5
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Section 2. Chapter 8
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