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Questions tagged [equatable]

The Swift equatable protocol can be used to have objects use the equality operators for comparison.

144 questions
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Swift 2.2, Contains Method not working

Contains method not working properly and it is giving me false result even if it is matching with Object? My Code Below class Generic: NSObject, NSCoding { var genericCode: String? var genericName : String? var genericType : String? var…
dhaval shah
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How to compare Equatable in Swift

I have multiple sets of two arrays like that. I am getting them from a 3rd party. var array1 : [Any?] var array2 : [Any?] I know about types of objects in these array (in compile time). As example that first element will be a String and second is…
Victor Ronin
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swift indexOf for [AnyObject] array

Trying to get the index of an array ([AnyObject]). What's the part that I'm missing? extension PageViewController : UIPageViewControllerDelegate { func pageViewController(pageViewController: UIPageViewController,…
el.severo
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Property change from Int to String provokes SwiftUI view not updating

I have a strange behavior in my code. It's a simple app that shows four views (CardView) and each time one of them is tapped, the view will reflect it by changing its border (using "selected" property). The problem is that when "value" property is a…
rai212
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List of equatable objects as member of an equatable object

I am currently following resocoders clean architecture in which he highly recommends to use Equatable for basic dataholding classes that will be compared in the future. The thing is my class will look something like this: class Person extends…
jaaq
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swift: why need to conform equatable when overload the "==" operator?

I'm learning swift and read a topic about operator overloading in extensions, which likes: extension StreetAddress: Equatable { static func == (lhs: StreetAddress, rhs: StreetAddress) -> Bool { return lhs.number ==…
Antonio Steve
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Common Equatable class on Swift

I need container for Any Equatable items in NOT Generic class (for example UI classes initial from storyboard). I need like this var items: [Equatable]? but it don't work, Equatable need Generic. the problem that there is no exist common Equatable…
EvGeniy Ilyin
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Swift Equatable Generic type comparison inside generic function

I have a Node class for a binary tree like so: class Node { let value: T let left: Node? let right: Node? init(value: T, left: Node? = nil, right: Node? = nil) { self.value = value self.left…
richy
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Swift 3: How to write Equatable func

I am trying to use struct as my key for dictionary. Code works for swift 2, however not for swift 3 as in the picture link. Equatable Code:
selcuk
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Swift enums with arguments: how to compare them?

I have the following enum: enum Message: ErrorType { case MessageWithInfo(info:String?) case MessageDidFail case MessageDidSend(info:String) case InvalidMessageData case MessageWithDelay(delay:Double) .... will keep adding…
zumzum
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Why am I getting the Equatable error: The element type can't be assigned to the list type 'Object'

I upgraded Flutter to v 3.3.4 and am trying to fix the null safety issues with my blocs, but have run into a problem with Equatable props. When I make one of the event properties nullable, the equatable get props shows the following error on the…
user3735816
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Swift subclass conform to equatable called super class implemenation?

class Base: Equatable { static func == (lhs: Base, rhs: Base) -> Bool { lhs.id == rhs.id } let id: String init(id: String) { self.id = id } } class SubClass: Base { public var id2: String? public…
Johnny
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XCTAssertEqual gives me error - UIViewController.Type cannot conform to 'Equatable'

I have an enum like following- enum Vehicle: String, CaseIterable { case car = "/car/" case boat = "/plane" case bicycle = "/bicycle/" case train = "/train" var targetControllerType:…
Natasha
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How to pass an enum case into a function that uses 'if case' to check for a property's case

I have an enum where each case has different (or none) associated values. The enum is not equatable. I'm using on several places if case to check if a value is of a specific case. enum MyEnum { case justACase case numberCase(Int) case…
Marco Boerner
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Comparing Two Protocol Instances for Equality in Swift

Here's the deal, I'm writing an SDK, and I want to declare observers as protocols, instead of classes or structs (It's sort of an "Observer/Delegate" hybrid). I want to be able to compare two arguments that are passed in as protocol references, as…
Chris Marshall
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