Color: Clear is pure, synthetic vanillin, and is also called crystal vanilla. A dark, murky color is also synthetic vanillin, probably ethyl vanillin derived from coal tar. The dark color may be due to a red dye that has been banned in the US or a caramel coloring. A true amber color is an indication of natural vanilla.
Swift is a multi-paradigm, compiled programming language created by Apple Inc. for iOS, OS X, and watchOS development. Swift is designed to work with Apple's Cocoa and Cocoa Touch frameworks and the large body of existing Objective-C code written for Apple products.Swift is intended to be more resilient to erroneous code (safer) than Objective-C, and also more concise.he Swift Programming Language, a free 500-page manual, was also released at WWDC, and is available on the iBooks Store. Swift reached the 1.0 milestone on September 9, 2014, with the Gold Master of Xcode 6.0 for iOS.
For the unrelated web desktop, see eyeOS. For the Cisco router/switch operating system, see Cisco IOS. For other uses, see IOS (disambiguation). iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that presently powers many of the company's mobile devices, including the iPhone, iPad, and iPod Touch.