string.toLowerCase()

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// Example 1: Convert a single word
let word = "Hello";
let lowerWord = word.toLowerCase();
console.log(lowerWord); // Output: "hello"

// Example 2: Case-insensitive comparison
let userInput = "YES";
if (userInput.toLowerCase() === "yes") {
  console.log("Confirmed!");
}

// Example 3: Normalize input for storage
let email = "User@Example.COM";
let normalizedEmail = email.toLowerCase();
console.log(normalizedEmail); // Output: "user@example.com"

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