On 2015-07-22, Ben Finney <[email protected]> wrote:
> Laura Creighton <[email protected]> writes:
>
>> The biggest use I have for decimal numbers that begin with 0 is in
>> credit card numbers, account numbers and the like where the first
>> check you do is 'does this thing have the correct number of digits'.
>
> The following are examples of types from the real world that people
> think of, and casually discuss, as “numbers”.
>
> * Postal code
> * Credit card number
> * Telephone number
> * Car registration plate number
> * Personal Identification Number (PIN)
Those are all strings. Not numbers.
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