Scala 2 v/s Scala 3: What new developments is Scala 3 bringing?
As the epitome of computer programming becoming an ever evolving and ever shifting criteria of development, speed and rapidness, how and why does Scala’s arrival change things? More importantly, how does the latest version of the same, Scala 3 look up to a much smoother and faster future, than its old version.
As Scala launched itself in 2004, the acceptance of this language has developed much in the last two decades, and with the incoming of Scala 3, things have surely made a turnaround. With a language that supports both, object oriented programming and functional programming, the outcome of Scala 3 is a push in both of these boundaries.
With a rip of new forces, the 3 has Explicitly ranked open classes. Also now the traits can take on parameters which is an even more powerful tool for modular software decomposition. Scala 2 never had an option to go off side ruling to structure blocks which means Scala 3 can now nest productive changes.
‘Scala’ or ‘scalable language’, the terms which combine to form the language itself are proving themselves more true with the new generation of Scala. The design grows as the demand of the users changes and that's how impactfully Scala 3 is molding its user. The newly introduced ‘quiet’ syntax is especially aimed at the new users that Scala aims to take on with its newer developments. With a strong focus on intent rather than on Mechanism, Scala 3 is aimed at performance outcome rather than the addressor inputs.
So rather than needing large sets of codes, a small set of features will work at the absolute strength of delivering huge implications and expressions instead. While in Scala 2, the option of macros was experimental, the same is simply not the case with Scala 3. With the newer needs of the developing world around us and with us a step into Virtual Reality with Meta being a huge part of the same, Scala simply had to step in big time into the meta coding world. Hence Scala 3 has come up with tools for meta programming such as Inline and Quoted Code Block among others. The inline reduces the code values at the time of compilation while the other is a high level interface which can help construct and analyze rigorous codes and provide quick and compact outcomes.
Another rigorous feature of Scala 3 which was simply not visible in Scala 2 is the extension method. While the later had to be encoded through implicit conversions / implicit classes to be encoded, the newer and later version has the extension built into the language itself. This helps reduce error clutter and brings on a new and improved type interface. While the both have their own differences and sets completely different from one another, one is simply a more developed version of the other and should not intimidate a new user, in fact it should help them start learning programming or develop their programming with ease.
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