VBScript Reference Manual for InduSoft Web Studio

VBScript Reference Manual InduSoft Web Studio
Exp
Description Returns e (the base of natural logarithms) raised to a power
Usage realVal = Exp(number)
Arguments number
The number argument can be any valid numeric expression
Return Returns a Variant subtype Double
Remarks If the value of number exceeds 709.782712893, a runtime error occurs. The constant e is
approximately 2.718282. The Exp function complements the action of the Log function and is
sometimes referred to as the antilogarithm.
See also Log
Example Dim MyAngle, MyHSin
MyAngle = 1.3 'Define angle in radians.
MyHSin = (Exp(MyAngle) - Exp(-1 * MyAngle)) / 2 'Calculate hyperbolic sine. Result
1.69838
Filter
Description Returns a zero-based array containing a subset of a string array based on a specified filter criteria
Usage strArray = Filter(InputStrings, Value[, Include[, Compare]])
Arguments InputStrings
Required. One-dimensional array of strings to be searched.
Value
Required. String to search for.
Include
Optional. Boolean value indicating whether to return substrings that include or exclude Value.
If Include is True, Filter returns the subset of the array that contains Value as a substring. If
Include is False, Filter returns the subset of the array that does not contain Value as a
substring. Default is True
Compare
Optional. Numeric value indicating the kind of string comparison to use. See Settings section
for values.
Settings The Compare argument can have the following values:
Constant Value Description
vbBinaryCompare 0 Perform a binary comparison.
vbTextCompare 1 Perform a textual comparison
Return A string array
Remarks If no matches of Value are found within InputStrings, Filter returns an empty array. An error
occurs if InputString is Null or is not a one-dimensional array. The array returned by the Filter
function contains only enough elements to contain the number of matched items. You can use the
Ubound function to determine the size of the zero-based array returned.
Example The following example uses the Filter function to return the array containing the search criteria
"Mon":
Dim MyIndex
Dim MyArray (3)
MyArray(0) = "Sunday"
MyArray(1) = "Monday"
MyArray(2) = "Tuesday"
MyIndex = Filter(MyArray, "Mon") 'MyIndex(0) contains "Monday".
MyIndex = Filter(MyArray, “n”) ‘MyIndex(0) contains “Sunday”
‘MyIndex(1) contains “Monday”
MyIndex = Filter(MyArray, “n”, False) ‘MyIndex(0) contains “Tuesday”
130 InduSoft, Ltd.