nicnilov

nicnilov

String.to_integer/1 why no exclamation mark?

Surely this has been asked and explained before, but for some reason I couldn’t find it.

String.to_integer/1 docs say:

string must be the string representation of an integer. Otherwise, an ArgumentError will be raised.

If an exception is a possibility and there is a convention of marking such functions with a trailing exclamation mark in the name, why doesn’t this function have it?

Thanks!

First Post!

hst337

hst337

Because there is no non-raising analog function with the same name. If you take a closer look, all bang functions have their analogs without bangs.

FYI, If you want to handle parsing error, use Integer.parse

Last Post!

hst337

hst337

Hmm, you’re right. Well, it is a good question for someone from Elixir core team

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