VBScript Built-in Functions


1. Date and Time Functions
  1. ·         CDate: Converts a valid date and time expression to the variant of subtype Date.
  2. ·         Date: Returns the current system date.
  3. ·         DateAdd: Returns a date to which a specified time interval has been added.
  4. ·         DateDiff: Returns the number of intervals between two dates.
  5. ·         DatePart: Returns the specified part of a given date.
  6. ·         DateSerial: Returns the date for a specified year, month, and day.
  7. ·         DateValue: Returns a date.
  8. ·         Day: Returns a number that represents the day of the month (between 1 and 31, inclusive).
  9. ·         FormatDateTime: Returns an expression formatted as a date or time.
  10. ·         Hour: Returns a number that represents the hour of the day (between 0 and 23, inclusive).
  11. ·         IsDate: Returns a Boolean value that indicates if the evaluated expression can be converted to a date.
  12. ·        Minute: Returns a number that represents the minute of the hour (between 0 and 59, inclusive).
  13. ·         Month: Returns a number that represents the month of the year (between 1 and 12, inclusive).
  14. ·         MonthName: Returns the name of a specified month.
  15. ·         Now: Returns the current system date and time.
  16. ·        Second: Returns a number that represents the second of the minute (between 0 and 59, inclusive).
  17. ·         Time: Returns the current system time.
  18. ·         Timer: Returns the number of seconds since 12:00 AM.
  19. ·         TimeSerial: Returns the time for a specific hour, minute, and second.
  20. ·         TimeValue: Returns a time.
  21. ·         Weekday: Returns a number that represents the day of the week (between 1 and 7, inclusive).
  22. ·         WeekdayName: Returns the weekday name of a specified day of the week.
  23. ·         Year: Returns a number that represents the year.
  24. ·         Date: Returns the current system date.


2. Conversion Functions   
  1. ·         Asc: Converts the first letter in a string to ANSI code.
  2. ·         CBool: Converts an expression to a variant of subtype Boolean.
  3. ·         CByte: Converts an expression to a variant of subtype Byte.
  4. ·         CCur: Converts an expression to a variant of subtype Currency.
  5. ·         CDate: Converts a valid date and time expression to the variant of subtype Date.
  6. ·         CDbl: Converts an expression to a variant of subtype Double.
  7. ·         Chr: Converts the specified ANSI code to a character.
  8. ·         CInt: Converts an expression to a variant of subtype Integer.
  9. ·         CLng: Converts an expression to a variant of subtype Long.
  10. ·         CSng: Converts an expression to a variant of subtype Single.
  11. ·         CStr: Converts an expression to a variant of subtype String.
  12. ·         Hex: Returns the hexadecimal value of a specified number.
  13. ·         Oct: Returns the octal value of a specified number.


3. Format Functions
  1. ·         FormatCurrency: Returns an expression formatted as a currency value.
  2. ·         FormatDateTime: Returns an expression formatted as a date or time.
  3. ·         FormatNumber: Returns an expression formatted as a number.
  4. ·         FormatPercent: Returns an expression formatted as a percentage.


4. Math Functions
  1. ·         Abs: Returns the absolute value of a specified number.
  2. ·         Atn: Returns the arctangent of a specified number.
  3. ·         Cos: Returns the cosine of a specified number (angle).
  4. ·         Exp: Returns e raised to a power.
  5. ·         Hex: Returns the hexadecimal value of a specified number.
  6. ·         Int: Returns the integer part of a specified number.
  7. ·         Fix: Returns the integer part of a specified number.
  8. ·         Log: Returns the natural logarithm of a specified number.
  9. ·         Oct: Returns the octal value of a specified number.
  10. ·         Rnd: Returns a random number less than 1 but greater or equal to 0.
  11. ·         Sgn: Returns an integer that indicates the sign of a specified number.
  12. ·         Sin: Returns the sine of a specified number (angle).
  13. ·         Sqr: Returns the square root of a specified number.
  14. ·         Tan: Returns the tangent of a specified number (angle).
  15. ·         Round: Rounds a number.



5. Array Functions
  1. ·      Array: Returns a variant containing an array.
  2. ·      Filter: Returns a zero-based array that contains a subset of a string array based on filter criteria.
  3. ·      IsArray: Returns a Boolean value that indicates whether a specified variable is an array.
  4. ·     Join: Returns a string that consists of a number of substrings in an array.
  5. ·     LBound: Returns the smallest subscript for the indicated dimension of an array.
  6. ·     Split: Returns a zero-based, one-dimensional array that contains a specified number of substrings.
  7. ·     UBound: Returns the largest subscript for the indicated dimension of an array.


6. String Functions
  1. ·     InStr: Returns the position of the first occurrence of one string within another. The search begins at the first character of the string.
  2. ·    InStrRev: Returns the position of the first occurrence of one string within another. The search begins at the last character of the string.
  3. ·         LCase: Converts a specified string to lowercase.
  4. ·         Left: Returns a specified number of characters from the left side of a string.
  5. ·         Len: Returns the number of characters in a string.
  6. ·         LTrim: Removes spaces on the left side of a string.
  7. ·         RTrim: Removes spaces on the right side of a string.
  8. ·         Trim: Removes spaces on both the left and the right side of a string.
  9. ·         Mid: Returns a specified number of characters from a string.
  10. ·         UCase: Converts a specified string to uppercase.
  11. ·         Replace: Replaces a specified part of a string with another string a specified number of times.
  12. ·         Right: Returns a specified number of characters from the right side of a string.
  13. ·         Space: Returns a string that consists of a specified number of spaces.
  14. ·         StrComp: Compares two strings and returns a value that represents the result of the comparison.
  15. ·         String: Returns a string that contains a repeating character of a specified length.
  16. ·         StrReverse: Reverses a string.


7. I/O Functions
  1. ·    InputBox: Displays a dialog box, where the user can write some input and/or click on a button, and returns the contents.
  2. ·      MsgBox: Displays a message box, waits for the user to click a button, and returns a value that indicates which button the user clicked.


8. Miscellaneous Functions
  1. ·     CreateObject: Creates an object of a specified type.
  2. ·     Eval: Evaluates an expression and returns the result.
  3. ·     GetLocale: Returns the current locale ID.
  4. ·     GetObject: Returns a reference to an automation object from a file.
  5. ·     GetRef: Allows you to connect a VBScript procedure to a DHTML event on your pages.
  6. ·     IsEmpty: Returns a Boolean value that indicates whether a specified variable has been initialized or not.
  7. ·    IsNull: Returns a Boolean value that indicates whether a specified expression contains no valid data (Null).
  8. ·     IsNumeric: Returns a Boolean value that indicates whether a specified expression can be evaluated as a number.
  9. ·   IsObject:  Returns a Boolean value that indicates whether the specified expression is an automation object.
  10. ·     LoadPicture: Returns a picture object. Available only on 32-bit platforms.
  11. ·     RGB: Returns a number that represents an RGB color value.
  12.      ScriptEngine: Returns the scripting language in use.
  13. ·         ScriptEngineBuildVersion: Returns the build version number of the scripting engine in use.
  14. ·         ScriptEngineMajorVersion: Returns the major version number of the scripting engine in use.
  15. ·         ScriptEngineMinorVersion: Returns the minor version number of the scripting engine in use.
  16. ·         SetLocale: Sets the locale ID and returns the previous locale ID.
  17. ·         TypeName: Returns the subtype of a specified variable.
  18. ·         VarType: Returns a value that indicates the subtype of a specified variable.

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