VBScript Functions

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# VBScript Functions

This page contains all the built-in VBScript functions. The page is divided into following sections:

- Date/Time functions
- Conversion functions
- Format functions

- Math functions
- Array functions

- String functions
- Other functions

## Date/Time Functions

Function | Description
--- | ---
CDate | Converts a valid date and time expression to the variant of subtype Date
Date | Returns the current system date
DateAdd | Returns a date to which a specified time interval has been added
DateDiff | Returns the number of intervals between two dates
DatePart | Returns the specified part of a given date
DateSerial | Returns the date for a specified year, month, and day
DateValue | Returns a date
Day | Returns a number that represents the day of the month (between 1 and 31, inclusive)
FormatDateTime | Returns an expression formatted as a date or time
Hour | Returns a number that represents the hour of the day (between 0 and 23, inclusive)
IsDate | Returns a Boolean value that indicates if the evaluated expression can be converted to a date
Minute | Returns a number that represents the minute of the hour (between 0 and 59, inclusive)
Month | Returns a number that represents the month of the year (between 1 and 12, inclusive)
MonthName | Returns the name of a specified month
Now | Returns the current system date and time
Second | Returns a number that represents the second of the minute (between 0 and 59, inclusive)
Time | Returns the current system time
Timer | Returns the number of seconds since 12:00 AM
TimeSerial | Returns the time for a specific hour, minute, and second
TimeValue | Returns a time
Weekday | Returns a number that represents the day of the week (between 1 and 7, inclusive)
WeekdayName | Returns the weekday name of a specified day of the week
Year | Returns a number that represents the year

## Conversion Functions

Top

Function | Description
--- | ---
Asc | Converts the first letter in a string to ANSI code
CBool | Converts an expression to a variant of subtype Boolean
CByte | Converts an expression to a variant of subtype Byte
CCur | Converts an expression to a variant of subtype Currency
CDate | Converts a valid date and time expression to the variant of subtype Date
CDbl | Converts an expression to a variant of subtype Double
Chr | Converts the specified ANSI code to a character
CInt | Converts an expression to a variant of subtype Integer
CLng | Converts an expression to a variant of subtype Long
CSng | Converts an expression to a variant of subtype Single
CStr | Converts an expression to a variant of subtype String
Hex | Returns the hexadecimal value of a specified number
Oct | Returns the octal value of a specified number

## Format Functions

Top

Function | Description
--- | ---
FormatCurrency | Returns an expression formatted as a currency value
FormatDateTime | Returns an expression formatted as a date or time
FormatNumber | Returns an expression formatted as a number
FormatPercent | Returns an expression formatted as a percentage

## Math Functions

Top

Function | Description
--- | ---
Abs | Returns the absolute value of a specified number
Atn | Returns the arctangent of a specified number
Cos | Returns the cosine of a specified number (angle)
Exp | Returns e raised to a power
Hex | Returns the hexadecimal value of a specified number
Int | Returns the integer part of a specified number
Fix | Returns the integer part of a specified number
Log | Returns the natural logarithm of a specified number
Oct | Returns the octal value of a specified number
Rnd | Returns a random number less than 1 but greater or equal to 0
Sgn | Returns an integer that indicates the sign of a specified number
Sin | Returns the sine of a specified number (angle)
Sqr | Returns the square root of a specified number
Tan | Returns the tangent of a specified number (angle)

## Array Functions

Top

Function | Description
--- | ---
Array | Returns a variant containing an array
Filter | Returns a zero-based array that contains a subset of a string array based on a filter criteria
IsArray | Returns a Boolean value that indicates whether a specified variable is an array
Join | Returns a string that consists of a number of substrings in an array
LBound | Returns the smallest subscript for the indicated dimension of an array
Split | Returns a zero-based, one-dimensional array that contains a specified number of substrings
UBound | Returns the largest subscript for the indicated dimension of an array

## String Functions

Top

Function | Description
--- | ---
InStr | Returns the position of the first occurrence of one string within another. The search begins at the first character of the string
InStrRev | Returns the position of the first occurrence of one string within another. The search begins at the last character of the string
LCase | Converts a specified string to lowercase
Left | Returns a specified number of characters from the left side of a string
Len | Returns the number of characters in a string
LTrim | Removes spaces on the left side of a string
RTrim | Removes spaces on the right side of a string
Trim | Removes spaces on both the left and the right side of a string
Mid | Returns a specified number of characters from a string
Replace | Replaces a specified part of a string with another string a specified number of times
Right | Returns a specified number of characters from the right side of a string
Space | Returns a string that consists of a specified number of spaces
StrComp | Compares two strings and returns a value that represents the result of the comparison
String | Returns a string that contains a repeating character of a specified length
StrReverse | Reverses a string
UCase | Converts a specified string to uppercase

## Other Functions

Top

Function | Description
--- | ---
CreateObject | Creates an object of a specified type
Eval | Evaluates an expression and returns the result
GetLocale | Returns the current locale ID
GetObject | Returns a reference to an automation object from a file
GetRef | Allows you to connect a VBScript procedure to a DHTML event on your pages
InputBox | Displays a dialog box, where the user can write some input and/or click on a button, and returns the contents
IsEmpty | Returns a Boolean value that indicates whether a specified variable has been initialized or not
IsNull | Returns a Boolean value that indicates whether a specified expression contains no valid data (Null)
IsNumeric | Returns a Boolean value that indicates whether a specified expression can be evaluated as a number
IsObject | Returns a Boolean value that indicates whether the specified expression is an automation object
LoadPicture | Returns a picture object. Available only on 32-bit platforms
MsgBox | Displays a message box, waits for the user to click a button, and returns a value that indicates which button the user clicked
RGB | Returns a number that represents an RGB color value
Round | Rounds a number
ScriptEngine | Returns the scripting language in use
ScriptEngineBuildVersion | Returns the build version number of the scripting engine in use
ScriptEngineMajorVersion | Returns the major version number of the scripting engine in use
ScriptEngineMinorVersion | Returns the minor version number of the scripting engine in use
SetLocale | Sets the locale ID and returns the previous locale ID
TypeName | Returns the subtype of a specified variable
VarType | Returns a value that indicates the subtype of a specified variable

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