JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Accessing Arrays with Bracket Notation - Example

The video tutorial demonstrates how to assign values from an array to a variable using JavaScript. It begins with creating an array of animals and then explains how to access elements using bracket notation. The tutorial also covers how to log outputs to the console and update array elements, emphasizing the importance of understanding index positions. The session encourages viewers to practice coding along with the examples provided.

What is the purpose of doing examples outside of HTML in JavaScript tutorials?

• To make the code run faster

• To ensure the code is not affected by HTML styling

• To keep the HTML file size small

• To focus on JavaScript logic without HTML interference

Which of the following is the correct way to declare an array named 'animal array' with four animals?

• let animalArray = ['cat', 'dog', 'bird', 'human'];

• var animalArray = 'cat', 'dog', 'bird', 'human';

• animalArray = ['cat', 'dog', 'bird', 'human'];

• let animalArray = 'cat', 'dog', 'bird', 'human';

How can you access the first element of an array named 'animalArray'?

• animalArray[1]

• animalArray[-1]

• animalArray[0]

• animalArray[first]

If you want to access the third element in an array using bracket notation, what index should you use?

• 1

• 3

• 2

• 0

What will be the output if you access the index 3 of the array ['cat', 'dog', 'bird', 'human']?

• dog

• cat

• bird

• human