Write a function that when given a URL as a string, parses out just the domain name and returns it as a string. For example:
domain_name("http://github.com/carbonfive/raygun") == "github"
domain_name("http://www.zombie-bites.com") == "zombie-bites"
domain_name("https://www.cnet.com") == "cnet"
def domain_name(url):
begin = 0
if "https://" in url:
begin += 8
elif "http://" in url:
begin += 7
if "www" in url:
begin += 4
return url[begin:].split(".")[0]Test.assert_equals(domain_name("http://google.com"), "google")
Test.assert_equals(domain_name("http://google.co.jp"), "google")
Test.assert_equals(domain_name("www.xakep.ru"), "xakep")
Test.assert_equals(domain_name("https://youtube.com"), "youtube")