In the case of 'nancy boy' my text "string starts with a number" looks silly because NaN claims to be not a number

I don't think you need worry about that.
My take on the reason that NaN ** 0 is defined to be 1 is that "every number raised to the power of 0 is 1" ... from which I deduce that the IEEE standards committee has decided that NaN *is* a number.

Cheers,
Rob

In reply to Re: Fun with implicit type conversions by syphilis
in thread Fun with implicit type conversions by haj

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