Le samedi 22 mars 2014 à 05:08 +0800, cnbiz850 a écrit :
> Well, from this perspective, it makes sense why those strings should not
> be mutable.
>
> But from other perspectives, making strings immutable contradicts with
> how natural languages are used. For instance, after I said "I am a
> professor", I want to say "I am a scientist", or perhaps I change my
> mind and say "I am a scholar".
But when it comes to concretely changing "I am a scientist" to "I am a
scholar", you'll do this anyway:
replace("I am a scientist", "scientist", "scholar")
I really doubt you'll find plausible use cases where you'd prefer to
mutate the string. And guess what, a construct like this couldn't work:
str = "I am a scientist"
str[8:16] = "scholar"
because the replacement string is too short. Woops...
So the question of whether the string is mutable or not has no serious
practical consequences.
Regards
