Crystal Description
Crystal's syntax is heavily inspired from Ruby's. It feels natural to read, easy to write, with the added benefit that it requires less learning curve for Ruby devs. Crystal is statically type-checked so errors in type will be caught before they reach runtime. Crystal also has type inference built-in, which means that most type annotations are unnecessary. Crystal makes all types non-nilable. The available variables are represented by a union of the type and null. The compiler will check for null references during compile time. Crystal's solution to metaprogramming is a powerful macro-system that covers everything from types inspection and basic templating to types inspection and running arbitrary programs.
Crystal Alternatives
Cython
Cython, an optimizing static compiler, is available for both the Python programming languages and the extended Cython programming languages (based on Pyrex). It makes it as easy to write Python extensions using C. Cython combines the power of Python with C, allowing you to write Python code that calls back to C or C++ natively at any time. Static type declarations can be used to convert readable Python code into plain C performance. Combine source code level debugging to identify bugs in Python, Cython and C code. Large data sets can be interacted with efficiently, e.g. Multi-dimensional NumPy arrays. You can quickly build your applications in the mature, well-used CPython ecosystem. The Cython language, which is a superset Python language, supports calling C functions as well as declaring C types on variables or class attributes.
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Clojure
Clojure is a robust and practical programming language that is fast and easy to use. It also has a number of useful features that make it a powerful, simple, and coherent tool. Clojure is a dynamic programming language that can be used for general purposes. It combines the simplicity and interactivity of a scripting language and an efficient and robust infrastructure to support multithreaded programming. Clojure can be compiled, but it is completely dynamic. All features supported by Clojure are supported at runtime. Clojure has easy access to Java frameworks. It also supports type hints, type inference, and optional type hints. This allows Java calls to avoid reflection. Clojure is a dialect Lisp and shares the code-as data philosophy and powerful macro system. Clojure is a functional programming language that features a rich array of persistent, immutable data structures. Clojure provides a software transactional memory and reactive agent system for mutable states.
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Scala
Scala combines object-oriented programming with functional programming in a single, concise language. Scala's static type system helps avoid bugs in complex applications. Its JavaScript and JVM runtimes allow you to build high-performance systems and have easy access to large libraries. Scala is intelligent about static types. You don't usually need to tell Scala what the types of your variables are. Instead, it will use its powerful type inference to figure them out. Scala uses case classes to represent structural data types. They implicitly equip the class using meaningful toString, equals, and hashCode methods. They also have the ability to be deconstructed using pattern matching. Scala functions are values. They can be described as anonymous functions using a concise syntax.
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Dart
Mature and complete async await for user interfaces that contain event-driven code, paired together with isolate-based concurrency. A programming language that is optimized for creating user interfaces. It includes sound null safety, spread operator for expanding collections, as well as collection if you want to customize the UI for each platform. A flexible type system that allows for rich static analysis and powerful, configurable programming tools lets you write code. JavaScript compilers that are mature and fast for the web can be used to target the web. Backend code that supports your app is written in a single programming language. This collection isn't exhaustive. It's a quick introduction to the language for those who like to learn by doing. You might also like to visit the Dart cheatsheet codelab or language and library tours.
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Pricing
Pricing Starts At:
Free
Free Version:
Yes
Integrations
Company Details
Company:
Crystal
Website:
crystal-lang.org
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Product Details
Platforms
Windows
Mac
Linux
Type of Training
Documentation
Customer Support
Online
Crystal Features and Options
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