get substring from last index of character

Question

I want to get the substring of all the characters after the last index of /

for example: "www.example.com/sfs3/dd/423"

desired output = 423

I've tried:

if let range = link.rangeOfString("/") 
{
//does not give me the last index of / it gives me starting from the first /
 newlink = link.substringFromIndex(range.endIndex)
}

fabian789 · Accepted Answer · 2016-01-23 14:49:56Z

6

You could also use NSURL's -lastPathComponent:

let link = "www.example.com/sfs3/dd/423"
if let url = NSURL(string: link) {
    let newLink = url.lastPathComponent
    // ...
}

This is probably the most bullet proof way if your input is a URL, be it from the web or from a local file.

answered Jan 23, 2016 at 14:49

fabian789

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vadian · Accepted Answer · 2016-01-23 14:58:25Z

5

With your syntax you can use the .BackwardsSearch option

if let range = link.rangeOfString("/", options: .BackwardsSearch) {
    let newlink = link.substringFromIndex(range.endIndex)
}

Alternatively

if let newlink = link.componentsSeparatedByString("/").last {
    print(newlink)
}

Edit: But I'd prefer the NSURL solution suggested by fabian.

edited Jan 23, 2016 at 14:58

answered Jan 23, 2016 at 14:43

vadian

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