HTML code in Swift String (not NSString)

Question

I am downloading HTML source code of a webpage this way:

let url = NSURL(string: "http://www.example.com")
var error: NSError?
let html = NSString(contentsOfURL: url!, encoding: NSUTF8StringEncoding, error: &error)

if (error != nil) {
    println("whoops, something went wrong")
} else {
    println(html!)
}

But I would like to get it as String instead of NSString. Is there any way?

Eric Aya · Accepted Answer · 2015-10-25 00:19:12Z

1

Swift's String also accepts the same initializer:

let html = String(contentsOfURL: url!, encoding: NSUTF8StringEncoding, error: &error)

I would suggest to use safe unwrapping with if let for your values:

var error: NSError?
if let url = NSURL(string: "http://www.example.com"), let html = String(contentsOfURL: url, encoding: NSUTF8StringEncoding, error: &error) {
    if error != nil {
        println(error)
    } else {
        println(html)
    }
}

Last note: no need to use brackets around the condition in Swift.

Update for Swift 2 (Xcode 7)

if let url = NSURL(string: "http://www.example.com"),
    let html = try? String(contentsOfURL: url, encoding: NSUTF8StringEncoding) {
        print(html)
}

edited Oct 25, 2015 at 0:19

answered Aug 25, 2015 at 15:26

Eric Aya

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