What is the advantage of Scala

Scala - fast and complex programming

Import import

The following three programming languages ​​are not as established and mature as Groovy and JRuby, but some elements may help one or the other language make a breakthrough in the next few years. Even if the languages ​​should never find widespread use, they do have enthusiastic supporters who will certainly keep the language alive, at least for niche applications.

Scala was actually developed as a research language in 2003. It is often referred to as multiparadigm language because it combines different programming philosophies. At its core it is an object-oriented language, so everything is an object with functional possibilities. Functional in this context means that a programming style that is particularly popular in academia is used. Functions without side effects are preferred, i.e. functions that do not change the status of a variable or a function. Furthermore, first-class functions, i.e. objects that can be transferred to other functions, and extended functional options can be defined. So constants and not variables are used. The last sentence may sound strange, but this principle is already present in many languages, including Java. For example, strings cannot be changed in Java. Any attempt to change an existing string actually means that a completely new string is created and the old one is deleted.

Functional programming has always been favored in the field of research. And Scala could be the vehicle here to bring this principle into the mainstream. The huge advantage is that, in contrast to traditional programming, parallel processing is relatively easy. This means that several parts of the program are executed at the same time. Since multi-core processors are becoming more and more standard, the hardware can be utilized much better with this type of programming. So far, Scala is unique among the languages ​​that use JVM. For example, actors are also supported. This is another parallel processing construct. Only Fantom can still integrate actors as an add-on. The difference is small, but important to some developers.

Scala has a big performance advantage over the other languages ​​presented here. The language is compiled into optimized bytecode and runs about as fast as Java. The other languages ​​are clearly behind Scala in terms of execution speed.

However, Scala has some drawbacks as well. The first is the partially unclear syntax. Any language can create illegible code, but Scala is particularly easy to do. The second problem is binary compatibility. The developers of Scala have released new versions a few times that were not binary-compatible with the previous versions. This is a huge barrier to general spread. No corporate developer will enjoy having to recompile existing code in order to work with newer code. Nevertheless, good tools have appeared for Scala and the user community is very active and enthusiastic. We believe that Scala will become one of the most widely used JVM languages ​​in the next few years.