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iOS Build a Weather App with Swift Managing Complexity Callback Methods With Closures

Prateek Kedia
Prateek Kedia
8,707 Points
Posted by Prateek Kedia
Prateek Kedia
8,707 Points

Trouble figuring out the error

Error says, "make sure the method fetchTreehouseBlogPosts is spelled correctly and doesn't have syntax error!"

I have checked the spellings but unable to figure out the syntax error

Callbacks.swift 
import Foundation

// Add your code below
typealias BlogPostCompletion = (data: NSData!,response: NSURLResponse!,error: NSError!) -> ()
func fetchTreehouseBlogPosts(completion: BlogPostCompletion) {

}

2 Answers

Richard Lu
Richard Lu
20,185 Points
Richard Lu
Richard Lu
20,185 Points

Hi Prateek,

I notice that your typealias definition is incorrect. It should look like this without the parameter names:

typealias BlogPostCompletion = ((NSData!, NSURLResponse!, NSError!) -> Void)  //The outer parenthesis are only required for this specific challenge.

Hopefully this helps.