鉴于《欧洲常规武装力量条约》,
http://online.wsj.com/
http://online.wsj.com/article/SB10001424052970204409004577158764211274708.html
http://www.techcrunch.com/2012/01/13/techcrunch-coo/
利用Ruby/Rails,我如何能够回到这个领域?
online.wsj.com
online.wsj.com
techcrunch.com
没有一个规程、没有刀切、只有没有条码的子号(
可用地址:URI.parse and the #host instance methods:
Addressable::URI.parse("http://techcrunch.com/foo/bar").host #=> "techcrunch.com"
了解,如果你没有<条码>,http://,这种回报为:
require uri
url = "www.techcrunch.com/2012/01/13/techcrunch-coo/"
p URI.parse(url).host # nil
因此,这样的解决办法应当是更安全的解决办法:
require uri
url = "www.techcrunch.com/2012/01/13/techcrunch-coo/"
url = http:// + url unless url.match(/^http:///)
puts URI.parse(url).host
pry(main)> require uri
pry(main)> url = "http://www.techcrunch.com/2012/01/13/techcrunch-coo?param1=foo¶m2=bar"
pry(main)> URI.parse(url).host
=> "www.techcrunch.com"
>> require uri
>> URI.parse("http://www.techcrunch.com/2012/01/13/techcrunch-coo/").host
=> "www.techcrunch.com"
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