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Programming/Swift

상수 constant

상수 [constant, 常數]
변하지 않고 항상 같은 값을 가지는 수를 말한다. 상수란 변하지 않고, 항상 일정한 값을 갖는 수를 말한다. 

Constants refer to fixed values that a program may not alter during its execution. Constants can be of any of the basic data types like an integer constant, a floating constant, a character constant, or a string literal.

 

Constants Declaration
Before you use constants, you must declare them using let keyword as follows −

let constantName = <initial value>
Following is a simple example to show how to declare a constant in Swift 4 −

Live Demo
let constA = 42
print(constA)
When we run the above program using playground, we get the following result −
42

 

www.tutorialspoint.com/swift/swift_constants.htm

 

Swift - Constants - Tutorialspoint

Swift - Constants Constants refer to fixed values that a program may not alter during its execution. Constants can be of any of the basic data types like an integer constant, a floating constant, a character constant, or a string literal. There are enumera

www.tutorialspoint.com

 

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