alchemy-2024-SWIFT

variables

• let to make a constant (immutable)
• var to make a variable (Mutable)

Datatypes

TypeInference

- let myAge = 35 //Integter
- let myName = "Girish " //Stign
- let temp = 87.5 //floating point
- let isValid = true // Boolean

type annotation

- let friend: String = "Girish "

Inbuilt functions

• string

  // String functions
  myName.uppercased()
  myName.lowercased()
  myName.capitalized // this is present in foundation package
  myName.isEmpty
  myName.hasPrefix("Gi")
  

• stringInterpolation

let firstName = "Girish"
let lastName = "V"
let age = 29
firstName + lastName // only strings can get joined if there is other type then use below format

"My name is \(firstName) \(lastName) and age is \(age)"

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