IsNumber(expression)

Category: Logical function

This function returns TRUE if the result of expression is a number. Otherwise, it returns FALSE.

Return value type: Boolean (TRUE/FALSE)

isnumber(123) //Returns TRUE

isnumber("It's a number!") //Returns FALSE

isnumber(100/3) //Returns TRUE

isnumber([FieldA]) //Returns FALSE (where [FieldA] is empty)

• IsBoolean(expression)
• IsEmpty(expression)
• IsError(expression)
• IsInteger(expression)
• IsNumeric(expression)
• IsText(expression)