VBScript Reference Manual for InduSoft Web Studio

VBScript Reference Manual InduSoft Web Studio
IsNumeric
Description Returns a Boolean value indicating whether an expression can be evaluated as a number.
Usage boolVal = IsNumeric(expression)
Arguments expression
The expression argument can be any valid expression.
Return A Boolean value
Remarks IsNumeric returns True if the entire expression is recognized as a number; otherwise, it returns
False. IsNumeric returns False if expression is a date expression, since it is not considered a
numeric expression.
See Also IsArray, IsDate, IsEmpty, IsNull, IsObject, VarType
Example The following example uses the IsNumeric function to determine whether a variable can be
evaluated as a number:
Dim MyVar, MyCheck
MyVar = 53 ' Assign a value.
MyCheck = IsNumeric(MyVar) ' Returns True.
MyVar = "459.95" ' Assign a value.
MyCheck = IsNumeric(MyVar) ' Returns True.
MyVar = "45 Help" ' Assign a value.
MyCheck = IsNumeric(MyVar) ' Returns False.
IsObject
Function Returns a Boolean value indicating whether an expression references a valid Automation object.
Usage boolVal = IsObject(expression)
Arguments expression
The expression argument can be any expression.
Remarks IsObject returns True if expression is a variable of Object subtype or a user-defined object;
otherwise, it returns False.
See Also IsArray, IsDate, IsEmpty, IsNull, IsNumeric, VarType
Example The following example uses the IsObject function to determine if an identifier represents an
object variable:
Dim MyInt, MyCheck, MyObject
Set MyObject = Me
MyCheck = IsObject(MyObject) ' Returns True.
MyCheck = IsObject(MyInt) ' Returns False.
Join
Description Returns a string created by joining a number of substrings contained in an array
Usage strVal = Join(list[, delimiter])
Arguments list
Required. One-dimensional array containing substrings to be joined.
delimiter
Optional. String character used to separate the substrings in the returned string. If omitted,
the space character (" ") is used.
Return A String
Remarks If delimiter is a zero-length string, all items in the list are concatenated with no delimiters. This
function is not to be confused with the SQL Join function
See Also Split
Example The following example uses the Join function to join the substrings of MyArray:
Dim MyString
Dim MyArray(3)
MyArray(0) = "Mr."
MyArray(1) = "John "
MyArray(2) = "Doe "
MyArray(3) = "III"
MyString = Join(MyArray) ' MyString contains "Mr. John Doe III".
144 InduSoft, Ltd.