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[Grammer] 05 - Variables and Constants

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Published: 25 Jan 2019 › Updated: 25 Jan 2019[Grammer] 05 - Variables and Constants

[Grammer] 05 - Variables and Constants

  • Variables(변수) : Keyword, Identifier, Type, Initial Value 등을 이용함.
var variableName = initialValue
var name = "James"
var year = 2017
var swiftVersion = 4.0
var isMale = true
  • Constants(상수) : 값을 변경 할 수 없음.
let variableName = initialValue
let name = "James"
let year = 2017
let swiftVersion = 4.0
let isMale = true
// year = 2019 << ERROR
  • Type Annotation: 자료형을 직접 지정하는 것
// var variableName: typeName
var name: String
name = "Geonhwi"

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