Skip to main content

Exercise 18: Identifying Vowels with a Switch Statement

Discover how to detect vowels in a text string using a switch statement. An ideal exercise to reinforce your knowledge of conditional statements.

The main purpose is to practice using a switch statement.switchto identify if a character is a vowel.

Activity​

  1. Ask the user to enter a letter.

  2. Useswitchto check if the entered letter is a vowel (a,e,i,o,u(in lowercase and uppercase).

  3. Display a message in the console indicating whether the letter is a vowel or not.

Solution​

Step 1: Create the index.html file​

HTML
<!DOCTYPE html>
<html lang="es">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Identificación de Vocales con switch</title>
  </head>
  <body>
    <h1>Ejercicio 18: Identificación de Vocales con switch</h1>
    <p>Los cambios se muestran en consola.</p>
    <script src="script.js"></script>
  </body>
</html>

Step 2: Write the code in script.js​

JavaScript
let letra = prompt("Ingresa una letra:");

switch (letra.toLowerCase()) {
  case "a":
  case "e":
  case "i":
  case "o":
  case "u":
    console.log("Es una vocal.");
    break;
  default:
    console.log("No es una vocal.");
}
info

🔎Check the sectionControl instructions in JavaScriptwhere you will find more information on this topic.