Medium Swift top 10 Articles Febrary 2017. 

Rank 1

14 must knows for an iOS developer. Courtesy of Norberto Gil Vasconcelos

Rank 2

Swift + Keywords (V 3.0.1). Courtesy of Jordan Morgan, iOS Engineer at Buffer.

Rank 3

Testing an Untested App. Courtesy of Michael May

Rank 4

My Development Toolset 2017 for iOS. Courtesy of durul

Rank 5

Building a Compiler in Swift with LLVM [Part 1]: Introduction and the Lexer. Courtesy of Harlan Haskins

…………. [ Part II: AST and the Parser ]

…………. [ Part III: Code Generation to LLVM IR ]

Rank 6

Comparing the Performance between Native iOS (Swift) and React-Native. Courtesy of John A. Calderaio

Rank 7

Swift Algorithm Club: Graphs with Adjacency List. Courtesy of Vincent Ngo, iOS Engineer at Capital One

Rank 8

Replicating Apple Design Awarded Applications in Swift. Courtesy of Igor Zapletnev

Rank 9

Make Memory Management Great Again: Swift 3 Automatic Reference Counting explained. Courtesy of Bob Lee

Rank 10

5 Core Swift Competencies Before You Get a Job. Courtesy of Andrew Wagner

No 1) Panel

PanelKit: A UI framework that enables panels on iOS.

[2,387 stars on Github]

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No 2) Layout

TinyConstraints: Syntactic sugar that makes Auto Layout sweeter for human use.

[1,173 stars on Github]

No 3) Swipe

SwipeCellKit: Swipeable UITableViewCell based on the stock Mail.app, implemented in Swift.

[1,682 stars on Github]

No 1) Beginner

Learn to Program Swift 3 with Xcode Playgrounds (including convert from Swift 2 to 3)

[2,178 recommends, 4.6/5 rating]

No 2) Instagram

Creating a Full Instagram Clone with Swift 3 and Xcode. Become an advanced iOS developer.

[1,790 recommends, 4.5/5 rating]

No 3) Game

Learn to build iOS games in Swift3 and Xcode 8.