Hello there!
first of all: what a nice little project! 💎

I noticed that when you first load the page, the currency for each country is filled correctly. However, as soon as you search for a country, the currency is directly replaced by "undefined (undefined)".

After a bit of fiddling around, it seems to me that it's because the data is created in a computed properties, which overwrites the object country itself in the formatRawData
And if I understand stackoverflow correctly, computed properties seem to be "call by reference" and thus modify the RawCountriesData object. (but I can be completely wrong)

I would love to help and try to fix it. I'm not sure what the right approach is here though.

• I could move the whole thing from computed to a method. However, I would have said it is correct in a computed.
• I could map the whole object in the formatRawData into a completely new object so as not to touch the original object. But that's not nice either somehow.
• A small if statement here to check if it has already been converted

Do you have a suggestion or a better idea? 😅
Please let me know and I would be happy to create a pull request.