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This page contains all the built-in VBScript functions. The page is divided into following sections:
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
| 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
| 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
| 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
| 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
| 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
| Function | Description |
|---|---|
| CreateObject | Creates an object of a specified type |
| Eval | Evaluates an expression and returns the result |
| 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 |
| 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 |
| TypeName | Returns the subtype of a specified variable |
| VarType | Returns a value that indicates the subtype of a specified variable |
