This is because, thanks to its functional nature, it is a more common choice when it comes to building powerful applications that need to cooperate with a large amount of data. Moreover, thanks to tools like Spark, Scala itself is becoming the number one choice for building modern machine learning models. Spark supports several widely used programming languages (Python, Java, Scala and R), includes libraries for tasks ranging from SQL to streaming to machine learning, and runs anywhere from a laptop to a cluster of thousands of servers. Last year, in the Tiobe Index report, Scala secured 20th place among the top twenty programming languages, with a rating of 0.9%.
Scala is a good example of constructive criticism: the programming language was designed to avoid Java's shortcomings while maintaining its advantages. Scala is a combination of object-oriented and functional programming in a concise, high-level language. It is a solid backend programming language, no more, no less, and where Python can offer brilliant and fancy models, Scala can do a lot of hard work. Scala is an enterprise programming language and it shines when it comes to building big data driven applications that chew through some gargantuan amounts of data.
But despite these problems, Scala is said to perform better with Java than with other programming languages. While many other modern programming languages are dynamically typed, Scala type-checks at compile-time, which means that many trivial but costly bugs can be detected at compile-time rather than in production. I have not made any significant contribution to the Scala system and open source data, but I have always used the Haskell language before Scala. Scala is a fully-fledged OOP language, and it is possible to write very elegant and expressive programs without even touching its functional attributes.
In general, Scala works with the equivalent of a Java program, so companies should not suffer if they decide to use Scala. Reports have also shown that Scala is securing the 30th position in the list of the top 50 trending programming languages. It should not be forgotten that Scala is one of the JVM languages and its biggest advantage is that it supports both object-oriented and functional programming.
