The point really, is I am not against ObjC. It is a perfectly valid language as languages go. Net platform are far easier to develop for. I read a lot about objc in the past few days since I read this article.
Is Objc2. Does it have a compiler for Linux? And what about the base class library? Is it open source? Does apple hold any patents on the language? Besides, when one is dealing with code whose performance is critical one must have some way of verifying that performance. Also, before. Keep PInvoking to your hearts content PJ. My point is that if you are going to comment on a language, please do some work to understand what you are speaking of before opening your mouth.
If you simply want to bash something, go bash your head into a wall. If you want to whine about something, go whine to your mothers; They probably care. In the end, it is a fact that there have been exceedingly powerful solutions that are ignored in favor of the one that attracts the most idiots.
Such has been the case with Objective-C. As a strict superset of C, you can take it or leave it, without having to sacrifice anything. Not sure what your argument is about COM.
Sure, COM was before. And wtf about pinvoking? Not sure where that ties in at all in this conversation. It has real object types or not. I have the option. It has introspection, real object-type class, now a opt-in garbage collector.
Delegates for exemple is an impressive tool. But that does not mean we should be putting down the language. Frequently, and particularly for Objective-C, the comments are pretty baseless when it really comes down to it.
Different problems often call for different solutions. But if you want to write a really nice, polished program, realize that the better way is usually to use the tools specific to a given platform. When all you have is a hammer … try to remember that other people use screws, or rivets, or glue, or something else in place of a nail.
Honestly, while the language features are really cool, probably the biggest win with Objective-C is the Cocoa frameworks written by Apple. Those of us who love Objective-C choose to sacrifice cross-platform compatibility in order to regain development time which would otherwise be spent writing glue code and manually doing a lot of what Cocoa does automatically. Dynamic typing is a great example of this. As a computer scientist, I would submit that people who write languages tend to think about language features a lot more than people who use languages.
However, reference counting generally makes it easier to understand and explicitly implement memory ownership, such that no one chunk of code has to be the one to explicitly free the memory. This tends to open up tons of possibilities for dynamic behavior, but it does require that each piece of code that deals with allocated memory follow the rules.
If you play by the rules, things just work. Looking toward the future: yes, garbage collection is new in Objective-C 2. If you can add a new feature to language without that side effect, please let me know. And honestly, the process of supporting GC is usually pretty straightforward, and the most important libraries the public Cocoa frameworks already support it.
Third-party GC support will increase over time. By the way, Obj-C 2. Two questions: 1 Have you actually worked on Objective-C code, especially if someone else wrote it?
I great example is Java constructors versus Obj-C -init… methods. Yes, it takes some getting used to, but it makes for code that more self-evident. Xcode and Objective-C play together quite nicely, including code completion and other features that make working with long Obj-C methods names a snap, and you can bet that the dev tools are only getting better in Snow Leopard.
This can occasionally be a sticking point, but it does allow for really smart optimizations in the dynamic runtime such as for introspection and tends to force you to think about what your method name should actually be, and what it accomplishes.
The outcome is generally cleaner code, and the expense of more up-front thinking. Not necessarily true, but that is what it excels at. Do you know how much reading, studying, writing, and debugging I had to do… just to do that in Objective-C???? What if I had to write a generic routine that accepts no parameters, and returns nothing. It just does all it needs to do… within itself.
OcjC is probably the only C-ish language I would choose to use anymore. NextStep was one incredible system and the fact that the libraries are in such wide use due to apple is great. Unfortunately there are no major Smalltalk systems being sold :. As far as cross platform goes for any large project you want to write the view code for each platform specifically anyway.
As well, in general, it requires far fewer lines of code for the same feature. Swift is a more compact language for programming.
At times, it can be very difficult to write, but it brings more benefits and is highly reusable. The latter point cannot be applied to Objective-C. The idea was quite risky because the team started in the early stages of the new language and worked along with the improvements in Swift.
What was the bottom line? The app went from 75, lines of code to 25, This stunning change did not influence the performance of Lyft, and the customers experienced no difference in its function.
This control means fewer crashes and cases of unexpected behavior. This, however, does not prevent bad code from being written, of course, but a developer is better protected from making unwanted mistakes. What about Objective-C vs Swift memory management?
ARC Automatic Reference Counting , the memory management functionality inside the Clang compiler, manages the memory of digital objects. This is easily handled with Swift working across procedural and object-oriented code using Cocoa API. Hence, in Swift coding, unified memory management developers should not give attention to each digital object, but rather concentrate on the general logic of the application and its features.
Its creators understood the fact that to build a remarkable modern programing language, it should be available for everyone. There is also an initiative to make Swift Android-compatible. The pull request has already been created and approved by the author of Swift, Chris Lattner.
It is an interesting fact that, so far, no one actually uses Swift in Android programming. Swift Playgrounds has introduced new opportunities to developers. This tool makes it possible to test code on the spot without compiling big pieces of it or creating the whole app. Playgrounds visualize data and programmers can quickly check and correct everything along with further development.
It is especially applicable to custom views and code experiments. The latest Xcode IDE gives developers a large space for experimentation in the form of a simple editor incl. This point is very important, especially when speaking about the cooperation between programmers building the same app on different platforms. This influences the productivity of work positively. Moreover, Swift can be used as a script language. It is an interesting solution for the iOS community to unify the writing of build scripts.
At the time being, iOS developers are split with regard to this activity. Some of them write build scripts in Bash, while others use Ruby, Python, etc.
Swift iOS programming corresponds to all modern needs and offers amazing opportunities. Apple Inc. The current Swift version has:. Moreover, Swift is expected to complete an important milestone in -binary compatibility with future Swift compiler releases.
As Swift is a more complex language and more feature-rich, it is harder to ensure that everything is exact.
For now, the Swift source code has been adjusted with each version update. Each time, this costs time and money. On the other hand, Apple has mentioned that they are currently working on this factor and expect to offer a solution in Similar to API, which defines all communication among all elements in a source code, ABI defines the communication rules for machine code. This mostly matters in larger projects, when compiling part of the application with a few Swift versions.
Therefore, in order to provide stable communication in a binary code of different compiler versions, ABI should be stable and well-structured. This can result in some problems with Swift frameworks across Swift versions. LinkedIn, a social network for professionals moved from Objective-C to Swift in their native app development.
How to make a social media app that would win over the market? Swift vs. One person may have had a bad experience with one of these programming languages , so they always steer clear of the other one. On the flip side, some people just go with whichever language they learned first or feel more comfortable with.
Everyone has their favorite. Choosing your language for a project depends on lots of different factors. It just means that it will work best for that particular scenario.
According to Apple , this language offers object-oriented capabilities as well as a dynamic runtime. Cocoa or Cocoa Touch will provide you with some of these objects and classes. This can lead to memory leaks. It was first released back in June , so iOS developers are still getting used to it. Apple created Swift to work with both Cocoa and Cocoa Touch. The basic concepts of Swift are similar to Objective-C at its core, such as the extensible programming, dynamic dispatch, and late binding.
But Swift code stands apart in terms of its ability to catch software bugs. It also addresses things like null pointers, which are common programming errors. So how does it stack up when it comes to performance compared to Objective-C? When Apple introduced Swift 2. With such a significantly higher program speed than Objective-C, Swift has to be the clear favorite in terms of developer preference, right? Swift is an open source language. So it was built by both Apple developers as well as outside contributors.
I briefly mentioned classes in their relationship to objects earlier during the overview of Objective-C. Well, Swift eliminates lots of classes that are perceived as unsafe code. By default, Swift objects can never be nil. Ultimately this will prevent a large number of crashes. Swift has a unique feature that is called optionals. Another benefit of the Swift syntax is that you can define your intent easily with keywords that are only three characters long.
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