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

Julien Frisch
Julien Frisch
4,464 Points
Posted by Julien Frisch
Julien Frisch
4,464 Points

My code is not working but the names are correct and I do not have a compiler error. What is the issue?

cf below my code.

Callbacks.swift 
import Foundation

// Add your code belowtypealias BlogPostCompletion = (data: NSData!, httpResponse: NSURLResponse!, error: NSError!) -> Void
typealias BlogPostCompletion = (NSData!,NSURLResponse!,NSError!) -> Void
func fetchTreehouseBlogPosts(BlogPostCompletion){
}

2 Answers

Steven Deutsch
Steven Deutsch
21,046 Points
Steven Deutsch
Steven Deutsch
21,046 Points

Hey Julien Frisch,

Try wrapping parentheses around the function signature.

import Foundation

// Add your code below

typealias BlogPostCompletion = ((NSData!, NSURLResponse!, NSError!) -> Void)

func fetchTreehouseBlogPosts(handler: BlogPostCompletion) {

}

Good Luck!

Julien Frisch
Julien Frisch
4,464 Points
Julien Frisch
Julien Frisch
4,464 Points

Working great, thanks Steven!