Exploring String Validation for checking characters

Описание: In this tutorial, we dive deep into string validation techniques, exploring essential functions that help you check individual characters in a string. Learn how to validate characters using:

isLowerCase(): Check if a character is in lowercase.
isUpperCase(): Verify if a character is uppercase.
isWhiteSpace(): Identify whitespace characters like spaces, tabs, and line breaks.
isLetter(): Determine if a character is a letter.
isDigit(): Verify if a character is a number.
isLetterOrDigit(): Check if a character is either a letter or a number.

We'll break down each method with simple code examples and explain how to use them in real-world scenarios. Whether you're a beginner or looking to improve your validation skills, this tutorial will help you better handle string manipulation in programming!

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