Once Kotlin received Google’s support, the sheer excitement of Kotlin fans wasn’t the only reaction to follow. Those not familiar with Kotlin wer...
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A few other points:
Both languages have a non-mobile aspect. Swift is also used for macOS development, and is available on Linux. IBM is promoting it for web server-side development. Kotlin was originally developed as a general purpose JVM language, and is also used for web server-side development.
Only Swift is compiled to native code. I realize there's a native Kotlin effort, but it's in its infancy at this point. Swift is highly competitive with C++ as far as runtime efficiency goes - and it should continue to improve.
Swift is reference counted instead of garbage collected. Kotlin is garbage collected. The practical result of this is that Swift doesn't suffer from GC latency, while Kotlin efficiently handles cycles in allocated objects. Apple (and I) both believe that GC latency is detrimental in desktop apps, games and any type of realtime programming.
I'm hopeful that both languages will continue to improve. It's unfortunate in my view that Google hasn't committed to Swift as its eventual preferred language for Android development. Swift versus Kotlin is another waste of developer mental bandwidth along the lines of Vulkan versus Metal versus Direct3D.
Kotlin is pathetic parody to Swift. Also Kotlin's syntax sugar is under doubt.
Related to article:
Anyin Kotlin is a base class?Swift has
Anydatatype for func / protocol / enum etc. What Kotlin does have accordingly?Who doubts what? Don't really understand what that's supposed to mean.
Yes,
Anyis basicallyObjectfrom JavaDon't really get what you mean again, but if you want to know about the Kotlin type system, you can check this: natpryce.com/articles/000818.html
In short: Everything in Kotlin extends
Any, also interfaces, enums and function types.All in all it's worth noting that calling a language "pathetic parody" of another language is not constructive and does not get us anywhere. Actually, it bespeaks of a pretty childish attitude and most of the dev.to community prefers to have a civilized discussion instead of ranting.
In the end, some things are better in Swift and some are better in Kotlin. Many things are the same.
Kotlin came first dude. If anything swift is a pathetic copy of kotlin. :)
Wikipedia says this to you?
Also, decision about who came first is incorrect to statement about parody.
Aaron, adhere to ethics. "Dude" – keep it to yourself.
the definition of parody is to imitate in a humorous way, so which came first is pertinent to whether or not something can be a "pathetic parody" of something else.
and what am i supposed to keep to myself?
But in point of fact, Chris Lattner first started creating Swift in 2011, it simply wasn't released until 2014. They're similar solely because they have a similar set of influences. Neither is based on the other.
Now now children. Everyone can have a seat at the table.
I think kotlin does support typealias as of 1.1.
True.
Thanks for the article. It definitely enlightened my view on the two mobile languages. I think for competitive reasons they won't ever merge, but it's interesting that they're similar in so many ways.
"traits" is no longer a thing in Kotlin. It got replaced by "interface" like... two years ago? Honestly, I stopped reading at that.
blog.jetbrains.com/kotlin/2015/04/...
There will always be at least two types of reaction to articles like this.
[a] Horror that you promoted one or the other - or both
[b] Argument in the comments that you failed to mention x or y
Considering the difficulty of writing this type of comparison - I salute you.
Comparing Kotlin with Swift. Can these languages trigger the appearance of a universal mobile development language for both Android and IOS. visit: compunneldigital.com/digital-trans...
nice write up. i noticed a few similarities when my coworker was presenting kotlin. (i use swift)
just a small correction though, you're missinv the '\' in the string interpolation. it should be "hi (name)" instead of "hi (name)"
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I agree with you that some points are very similar in both languages Kotlin and Swift. But both are used by developers according to their requirements. After getting Google support from 2017 Kotlin becomes more popular then Swift. Review link that how both are different in many things - bit.ly/2HztGRY
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Wikipedia says this to you?
Also, decision about who came first is incorrect to statement about parody.
Aaron, adhere to ethics. "Dude" – keep it to yourself.
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They already have an universal language called C.
A big difference are value types, which are extremely important in Swift.
yes. I would really love to have them for Kotlin, but the JVM does not (yet) support value types.
Swift value types are really a collection of language features. Here is a comparison of Swift's value types with Kotlin's features:
Enums representing choice
Swift:
enum VideoQuality {
case High
case Medium
case Low
}
Kotlin:
enum VideoQuality { High, Medium, Low }
Enums representing different things
Swift:
enum VideoMetadata {
case Program(channelId: String, programId: String)
case Ad(channelId: String, adId: String)
case Filler(channelId: String)
}
Kotlin:
sealed class VideoMetaData
data class Program(val channelId: String, val programId: String) : VideoMetaData()
data class Ad(val channelId: String, val adId: String) : VideoMetaData()
data class Filler(val channelId: String): VideoMetaData()
Tuples
Swift:
typealias Person = (name: String, age: Int)
let person = (name: "George", age: 30)
let (name, age) = person
Kotlin:
data class Person(val name: String, val age: Int)
val person = Person("George", 30)
val (name, age) = person
Note: I'm not aware that Kotlin supports passing a data class to a function in place of multiple named parameters. The workaround of course is to take the class as a parameter.
Struct
In Kotlin, a Swift struct would be ported to be a data class or basic class. However, it is NOT copied when passed around. However, there is an explicit copy method on Kotlin data classes to allow modifying on copy. (FWIW, I don't think I'd like an implied copy on assignment in Kotlin anyway.)
"Primitives"
Swift: Int, Bool, Double
Kotlin: Int, Boolean, Double
Class
They're basically the same in Kotlin as explained above.
You could just call Swift code from Kotlin using the JNI :)
Haha, "just" 😅
As a new bee to Kotlin, I see it as Swift being a readable version of Objective-C & Kotlin being a readable version of Swift!
Plus, its a relief to know there's light at the end of the tunnel for pure Java developers. Hopefully with further improvements in Kotlin, in due course of time, java developers need not be stuck to server side programming & can also easily flex their muscles in native mobile app development.
Its kind of annoying that Google / Jetbrains had to invent yet another programming language when they could have gone with Groovy or Scala, two languages with very nice features. It just points to a bigger problem that Big Corporations don't accept grass roots based languages and keep dictating these silly technical schisms that force developers into one camp or another.
Hey Google and Apple, why not develop languages that are interoperable across language boundaries ? They have the money to actually build languages and environments that let a single developer develop apps for all major platforms...but instead they force you into unwavering allegiance to their dogma.
I enjoyed reading the article. When Kotlin was announced as being supported in Android Development, I was curious about the similarities to Swift as I'm an iOS / macOS developer. So this article helped give me a basis for comparison. Thanks.
A couple of notes.
First: (it should be noted that while Swift appeared in 2013, Kotlin originated back in 2011) - Swift was first revealed on June 2nd 2014, during the 2014 WWDC keynote.
Second: (In Swift these are blocks or closures, the terms from Objective-C.) - "Blocks" are from Objective-C and "Closures" are from Swift. While they both serve the same purpose (anonymous functions) they capture variables a little differently. So the TERM "Closures" doesn't come from Objective-C, it was started in Swift.
Nice write up but where's the love for C#? Many of these concepts have been in C# for awhile.
True.
C# had Type inference, extension functions and lambdas first, but they also didn't invent those concepts ;-)
The biggest issue though is that you don't nearly get the same programmer experience when you target iOS or Android with C#. The biggest plus for Kotlin and Swift are the interoperability with Java, respectively Obj-C.
Also, C# is getting older as well and - just like Java - has a lot of ceremony and needs a lot of boilerplate code to achieve the same results as modern languages.
Hi Lovis,
While I agree that C# is getting older it is certainly not getting outdated. Microsoft continuously improves the language, mostly by making it more functional. Just recently they added tuples and pattern matching.
I cannot speak for Kotlin, but I find it interesting that you think there is more boilerplate code in C# than in Swift. I work with both languages and I like them both. The main differences are in reference counting vs. garbage collection and in how the languages allocate memory on the heap vs. the stack. I actually find that the reference counting in Swift adds some extra boilerplate with the weak, unowned, and @escaping keywords.
On the other hand, Swift has some really cool syntax features when it comes to lambdas.
Compared to functional languages like F#, both Swift and C# add a lot of boilerplate stuff though.
By the way, you should try Visual Studio for Mac which gives you both macOS and iOS developing (as well as ASP.NET Core). In my hubmle opinion, XCode is seriously lacking when it comes to code editing and debugging :-)
Best regards,
Jakob
Hey Jakob! :-)
You're right with the extra boilerplate for the ARC.
However, I'm on Kotlin, not on Swift, and Kotlin is Garbage collected.
My point with the boilerplate, though is that Kotlin and Swift are developed with Android/iOS in mind, and they will therefore probably always be more suited for that
Kotlin nor Swift is the enemy. I just wanna kill myself just thinking about Javascript. Yet it is the preferred cross-platform development methodology of choice (React Native). Argh.
In the function and computed properties examples, backslashes before paranthesis are missing for string interpolation in Swift.
also kotlin interfaces are not called "traits" anymore. like for two years now. 🙄
Nice info.Kotlin need to be upgrade more
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I think dart is the unifying language for both....though it still needs a little more work
Swift is nice, but Kotlin is a lot prettier in my opinion. I am learning now Swift, and it's so similar. Nothing like the distance between Java and Objective-C
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Why do these companies do not use JavaScript? Ahh!! Because they cannot control the language.
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Swift is nice, but Kotlin is a lot prettier in my opinion. I am learning now Swift, and it's so similar. Nothing like the distance between Java and Objective-C