![]() In JavaScript all numbers are represented as 64-bit floating point internally, which may give surprising results when Scala typeĦ4-bit floating point, fully equivalent to JS number The following table presents the most commonly used ones (there are also Byte, Short and Float). Scala defines several primitive types, of which most have corresponding types in JavaScript as well. In Scalaīoth mutable and immutable variables must always be initialized when declared. Note that the Scala compiler automatically infers the types for x and y from the values that are assigned. Scala // mutable variable var x = 5 // immutable variable val y = "Constant" Both Scala and ES6 support mutable and immutable variables. Let’s start with something simple, variables. ![]() This is not true with Scala where the compilerĬan infer most of the types automatically. If you have used other statically typed languages like Java or C#īefore you may have noticed that type definitions are all over the place. This means that it is equipped with anĮxpressive type system that enforces statically that abstractions are used in a safe and coherent manner, meaning theĬompiler will catch many typical programming errors. The biggest difference to JavaScript is that Scala is statically typed. The language does not encourage immutability. However, although it is possible to write with an immutable mindset in JavaScript, It is at least partially functional as well, since functions are values and can be passedĪround to other functions (such as ). JavaScript is also object-oriented, although primitive values are not considered as objects. This combination of paradigms is not alien to JavaScript developers. ![]() That every function is a value and that immutability is favored over mutability. It is also a functional language in the sense Pure object-oriented language in the sense that every value is an object. It smoothly integrates features of object-oriented and functional languages. ![]() Scala is a modern multi-paradigm programming language designed to express common programming patterns in a concise,Įlegant, and type-safe way. The best way to experiment with Scala is to use a Scala REPL, or the worksheetįor more reading check out Scala Exercises, Scala To ES6 instead of earlier versions of JavaScript because ES6 contains many nice features and syntax changes that bring This is a short introduction to the Scala language for those familiar with JavaScript ES6. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |