React Native vs Swift: What are the differences?
React Native can be classified as a tool in the "Cross-Platform Mobile Development" category, while Swift is grouped under "Languages".
React Native and Swift are both open source tools. It seems that React Native with 78.3K GitHub stars and 17.5K forks on GitHub has more adoption than Swift with 48.2K GitHub stars and 7.71K GitHub forks.
Slack, Lyft, and Zillow are some of the popular companies that use Swift, whereas React Native is used by Yahoo!, hike, and Webedia. Swift has a broader approval, being mentioned in 979 company stacks & 526 developers stacks; compared to React Native, which is listed in 701 company stacks and 781 developer stacks.
What is React Native?
What is Swift?
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The performance of Swift is almost the same as that of C++, which is considered the fastest in algorithm calculation arithmetics. Apple had this idea in mind and worked to improve the speed of Swift. For example, Swift 2.0 has beaten C++ in several computation algorithms, such as Mandelbrot algorithm. Objective-C is slower because it contains C API legacy.
Swift is faster than Objective-C, because it removed the limitations of C language and has been improved with the help of advanced technologies that were unavailable when C was developed. As mentioned by Apple, Swift was originally designed to operate faster.
Despite the fact that languages are different, they both integrate, and work with Cocoa and Cocoa Touch APIs, for all Apple platforms. Therefore, a regular app-user would not recognize the difference in operating speed between Objective-C vs Swift. Speed also depends on a programmer’s level and capabilities, since a slow app can be written in Swift as well.
Its performance approaches the one of C++ which is considered the fastest algorithm calculation arithmetics. And Apple strives to improve the speed of Swift. Learn more here https://mlsdev.com/blog/51-7-advantages-of-using-swift-over-objective-c
iPhone app, a new born language, it may good but the IDE, xcode is bad compare with Visual Studio. It just like a baby. playground can only use without connect to other library...you can not do a simply refactor of renaming a variable. You can go to definition and find reference, but you can not go to implementation....I should write them on xcode not here basically it is not the fault of swift, but it tightly to it, unless you want to use a notepad to write it.
React Native is great in that it reduces the overhead of writing native code based on a web app. If written in a good style, Redux part of the app can often just be copied or shared in the Native app - and it just works! What a timesaver.
Most of our newer apps are written completely in swift, with our older ones and some special cases using a mix of Swift and Objective-C, but with Swift 2, the language is pretty much a must-use. "guard" is <3.
The framework used to write the mobile apps in this project. I've chosen this because of the "write once run all" (ios and android) mentality.
Flutter is coded with Swift v.2.3 and can be run with Xcode v.8.2.1. To launch in Xcode 9.3, the code needs to be migrated to Swift 4.1
We are not currently using this product but we have very high interest in learning and using this for mobile apps.
Most of the app code was gradually rewritten in Swift for better performance and code maintenance.
Our native iOS app is built on Swift, and most of the basic function is still written in Swift
New features of our app are developed on React Native, so we could maintain a small dev team.