#Ctype.h A Node module to implement the functions provided by C++'s Ctype.h header. Following are the functions

1. isAlpha- Checks whether the character is an alphabet or not.
2. isBlank- Checks whether the character is a blank character or not.
3. isDigit- Checks whether the character is a digit or not.
4. isStrUpper- Checks whether the string is in Uppercase or not.
5. isStrLower- Checks whether the string is in Lowercase or not.
6. isUpper- Checks whether the character is in Uppercase or not.
7. isLower- Checks whether the character is in Lowercase or not.
8. isNum- Checks whether the string is a number or not.
9. isAlNum- Checks whether the string is an alphanumeric or not.
10. isStr- Checks whether the string contains on alphabets or not. It returns true if the function is true and false if the function is false