Modern JavaScript from the Beginning - Second Edition - Drum Machine Project

Modern JavaScript from the Beginning - Second Edition - Drum Machine Project

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

Created by

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FREE Resource

This video tutorial guides viewers through creating a simple drum machine using the audio API and JavaScript. It covers setting up HTML and CSS, mapping keyboard keys to sounds, integrating audio elements, and handling keydown events to play sounds and animate keys. The project demonstrates how to use data attributes for key mapping and includes final testing to ensure functionality.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the purpose of the drum machine interface described in the text?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Which letters are used to trigger sounds in the drum machine?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the data-key attribute in the project?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the key codes for the letters A, S, D, F, G, H, J, and K?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the JavaScript function play sound work when a key is pressed?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

What happens when a key is pressed and there is no corresponding audio tag?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the process of adding and removing the 'playing' class in the CSS.

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