Why does apple use swift?
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struct Planet { var name: String var distanceFromSun: Double } let planets = [ Planet(name: "Mercury", distanceFromSun: 0.387), Planet(name: "Venus", distanceFromSun: 0.722), Planet(name: "Earth", distanceFromSun: 1.0), Planet(name: "Mars", distanceFromSun: 1.52), Planet(name: "Jupiter", distanceFromSun: 5.20), Planet(name: "Saturn", distanceFromSun: 9.58), Planet(name: "Uranus", distanceFromSun: 19.2), Planet(name: "Neptune", distanceFromSun: 30.1) ] let result1 = planets.map { $0.name } let result2 = planets.reduce(0) { $0 + $1.distanceFromSun } What are the types and values of the result1 and result2 variables? Explain why.
Explain what is half-open range operator?
Mention what is the difference between Swift and ‘Objective-C’ language?
Explain some common features of protocols & superclasses.
Who calls the main function of our app during the app launch cycle?
What is subscript in swift?
How to declare an empty dictionary in swift?
What is the function of swift?
What is a delegate in swift?
What is instance variable in swift?
What is the usage of switch statement in swift language?
Explain the different features of swift programming language?