The code to accompany the video course "Build Your Swift App Using Protocols"
Home Page: https://www.packtpub.com/application-development/build-your-swift-app-using-protocols-video
Hi, Hamish.
I hava a confusion about protocol in swift. eh... for example:
I defined two protocols and two extensions about URLSession and URLSessionDataTask like following code:
protocol URLSessionDataTaskProtocol {
func resume()
}
protocol URLSessionProtocol {
typealias dataTaskHandler = (Data?, URLResponse?, Error?) -> Void
func dataTask(with request: URLRequest, completionHandler: @escaping dataTaskHandler) -> URLSessionDataTaskProtocol
}
extension URLSessionDataTask: URLSessionDataTaskProtocol {}
extension URLSession: URLSessionProtocol {}
In my opinion, URLSession has a func
open func dataTask(with request: URLRequest, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Swift.Void) -> URLSessionDataTask
it returns URLSessionDataTask which is conform to protocol URLSessionDataTaskProtocol. so i think URLSession is conform to protocol 'URLSessionProtocol'ใ
But, swift give me an error:
URLSession does not conform to protocol URLSessionProtocol
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google โค๏ธ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.