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Returns the character at the specified index.

Joins two or more strings and returns a new string.

Checks if a string contains the specified substring.

Returns the index of the first occurrence of a specified value.

Returns the index of the last occurrence of a specified value.

Extracts a section of a string and returns it as a new string.

Splits a string into an array of substrings.

Returns a portion of the string, starting at the specified index.

Returns a substring between two indexes.

Converts a string to all lowercase letters.

Code Snippets:

string.toLowerCase()

Example Uses:

// 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"