What is Swift ?
Swift is Apple's latest programming language for iOS and OS X apps that builds on the best of C and Objective-C, without the constraints of C compatibility. Swift adopts safe programming patterns and adds modern features to make programming easier, and flexible.
Swift Providing below data types in his way of syntax.
Int : Used for integer type values.
Double : Used for floating points values.
Float : Used for floating points values.
Bool : Used for Boolean values.
String : Used for Text data values
Array : Used for collection.
Dictionary : Used for collection.
Constants and Variables
In Swift, Constants and Variables need to be declared first before using them.
let x = 10
var y = 0
You can declare multiple constants and variables in a single line using coma as a separator.
let x = 10, y=11,z=0
var a = 1, b=10, c=3