redundant_optional_initialization.md

Pattern: Redundant optional initialization

Issue: -

Description

Initializing an optional variable with nil is redundant.

Examples of correct code:

var myVar: Int?


let myVar: Int? = nil


var myVar: Int? = 0


func foo(bar: Int? = 0) { }


var myVar: Optional<Int>


let myVar: Optional<Int> = nil


var myVar: Optional<Int> = 0


var foo: Int? {
   if bar != nil { }
   return 0
}


var foo: Int? = {
   if bar != nil { }
   return 0
}()


lazy var test: Int? = nil

Examples of incorrect code:

var myVar: Int?↓ = nil


var myVar: Optional<Int>↓ = nil


var myVar: Int?↓=nil


var myVar: Optional<Int>↓=nil

Further Reading

• SwiftLint - Redundant Optional Initialization