what is IOS swift
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.