IsNumeric function (LotusScript Language)

Tests the value of an expression to determine whether it is numeric, or can be converted to a numeric value.

Syntax

IsNumeric ( expr )

Elements

expr

Any expression.

Return value

The IsNumeric function returns TRUE (-1) if the value of expr is a numeric value or can be converted to a numeric value. The following values are numeric:

Integer
Long
Single
Double
Currency
Date/Time
EMPTY
String (if interpretable as number)
OLE error
Boolean (TRUE, FALSE)

If expr is not a numeric value and cannot be converted to a numeric value, IsNumeric returns FALSE (0). The following values are not numeric:

NULL
Array
List
Object (OLE Automation object, product object, or user-defined object)
String (if it cannot be interpreted as number)
NOTHING

Usage

A common use of IsNumeric is to determine whether a Variant expression has a numeric value.

Language cross-reference

@IsNumber

Example

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