Re: Create a NSURL as a way to validate urls - not working
Re: Create a NSURL as a way to validate urls - not working
- Subject: Re: Create a NSURL as a way to validate urls - not working
- From: Jens Alfke <email@hidden>
- Date: Mon, 02 Mar 2015 16:57:26 -0800
> On Mar 2, 2015, at 3:55 PM, Juanjo Conti <email@hidden> wrote:
>
> Ok, I wanted to validate that the url is an absolute one. Is there
> something in Swift standard lib to do this?
I typically check whether url.scheme is a non-nil, non-empty string. You may also want to check the scheme if you need to restrict input to HTTP URLs, for instance. (For example, “a:b” is a perfectly valid absolute URL, but probably not one your app will find useful.) Keep in mind that URL schemes are case-insensitive, so “HTTP:” means the same as “http:”.
Also, this has nothing to do with the Swift library. NSURL is part of the Foundation framework, so this is independent of whether you’re using Swift or Objective-C.
—Jens
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