VBScript functions

Functions in VbScript

Date, Time Functions

Function
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)
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)
Month:
Returns a number that represents the month of the year (between 1 and 12)
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)
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)
WeekdayName :
Returns the weekday name of a specified day of the week
Year :
Returns a number that represents the year

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Conversion Functions

Function
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

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Format Functions

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

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Math Functions

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)

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Array Functions
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

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String Functions
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

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Other Functions
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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