Dart vs JRuby: What are the differences?
Dart: A new web programming language with libraries, a virtual machine, and tools. Dart is a cohesive, scalable platform for building apps that run on the web (where you can use Polymer) or on servers (such as with Google Cloud Platform). Use the Dart language, libraries, and tools to write anything from simple scripts to full-featured apps; JRuby: A high performance, stable, fully threaded Java implementation of the Ruby programming language. JRuby is the effort to recreate the Ruby (http://www.ruby-lang.org) interpreter in Java. The Java version is tightly integrated with Java to allow both to script any Java class and to embed the interpreter into any Java application. See the docs directory for more information.
Dart and JRuby can be primarily classified as "Languages" tools.
"Backed by Google" is the primary reason why developers consider Dart over the competitors, whereas "Java" was stated as the key factor in picking JRuby.
JRuby is an open source tool with 3.32K GitHub stars and 830 GitHub forks. Here's a link to JRuby's open source repository on GitHub.
According to the StackShare community, Dart has a broader approval, being mentioned in 19 company stacks & 78 developers stacks; compared to JRuby, which is listed in 13 company stacks and 4 developer stacks.
What is Dart?
What is JRuby?
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I use Dart because it is a fast, modern language with an intuitive package manager and syntax similar to Java, while less verbose (i.e. public by default,
_ in front of a variable, class, etc. to be private). Dart has an excellent asynchronous syntax making asynchronous calls such as filesystem interaction or HTTP requests simple and concise.