Included functions for applying Text Cases to text:

• CamelCase: single word without space, with first word lowercase and others capitalized (camelCase).
• PascalCase: single word without space, all words capitalized (PascalCase).
• ProperCase: every word capitalized (Proper Case).
• SentenceCase: first word of the sentence capitalized (Sentence case).
• SnakeCase: all words lowercase, space replaced by underscore (snake_case).

The following features were included:

• Insert: inserts a value into a string at a given index.
• StartsWith: indicates whether the string begins with the given prefix characters.
• EndsWith: indicates whether a string ends with the given suffix characters.

The following features were included:

• IsEmailValid: verifies if the provided email is valid.
• IsEven: verifies if the provided number is odd or even.
• IsNaN: verifies if the provided number is Not-a-Number.