Home / lang / isnumber 
IsNumber
Syntax
bRes = IsNumber ( vExpr ) AS Boolean
bRes = Number? ( vExpr ) AS Boolean

Returns if an expression is a number, i.e. if it is:

Examples

PRINT IsNumber(1)

True

PRINT IsNumber(False)

True

PRINT IsNumber(Pi)

True

PRINT IsNumber(Now)

False

PRINT IsNumber(NULL)

False

See also

Datatype Functions