CodeSignal [44/60] findEmailDomain

Problem:

An email address such as "John.Smith@example.com" is made up of a local part ("John.Smith"), an "@" symbol, then a domain part ("example.com").

The domain name part of an email address may only consist of letters, digits, hyphens and dots. The local part, however, also allows a lot of different special characters. Here you can look at several examples of correct and incorrect email addresses.

Given a valid email address, find its domain part.

 

Example

• For address = "prettyandsimple@example.com", the output should be
  findEmailDomain(address) = "example.com";
• For address = "fully-qualified-domain@codesignal.com", the output should be
  findEmailDomain(address) = "codesignal.com".

-Summary-

1. email address를 뒤에서부터 읽어 special chracter인 '@'을 만날때까지 리스트에 character들을 넣어준다.

2. 끝나고 list 안에 담겨있는 character들을 join()함수로 return.

풀고 난 후에 사람들이 푼 답을 보니 .split() 함수로 너무 쉽게 표현되 있어 오늘도 배운다.

return address.split('@')[-1]

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