Library Functions- Library functions are those In-build functions that are already available in VB.
Types of Library Functions:
• STRING FUNCTIONS
• NUMERIC FUNCTIONS
• DATE & TIME FUCTIONS
STRING FUNCTIONS-
1 Lcase ( ) : This function converts a given string into all lower case.
Syntax : Lcase(string)
Example : Print Lcase(“SCHOOL”)
Output : school
Ucase ( ) : This function converts a given string into all lower case.
Syntax : Ucase(string)
Example : Print Ucase(“school”)
Output : SCHOOL
Len ( ) : This function gives the length of the string i.e. how many characters long the string is. All characters are counted including spaces and punctuation.
Syntax : Len(string)
Example : Len(“School Time”)
Output : 11
RTrim( ) : This function removes trailing spaces from a string.
Syntax : RTrim(string)
Example : RTrim(“School ”)
Output : School
LTrim ( ) : This function removes all leading spaces from a string.
Syntax : LTrim(string)
Example : LTrim(“ School”)
Output : School
Left ( ) : This function is used to extract a certain number of characters from the leftmost portion of string.
Syntax : Left(string,no-of chars)
Example : Left(“School Time”,6)
Output : School
Right ( ) : This function is used to extract a certain number of characters from the rightmost portion of string.
Syntax : Right(string, no-of chars)
Example : Right(“School Time”,4)
Output : Time