Dart vs Erlang: 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; Erlang: A programming language used to build massively scalable soft real-time systems with requirements on high availability. Some of Erlang's uses are in telecoms, banking, e-commerce, computer telephony and instant messaging. Erlang's runtime system has built-in support for concurrency, distribution and fault tolerance. OTP is set of Erlang libraries and design principles providing middle-ware to develop these systems.
Dart and Erlang can be primarily classified as "Languages" tools.
"Backed by Google" is the primary reason why developers consider Dart over the competitors, whereas "Real time, distributed applications" was stated as the key factor in picking Erlang.
Erlang is an open source tool with 7.74K GitHub stars and 2.1K GitHub forks. Here's a link to Erlang's open source repository on GitHub.
AdRoll, Grooveshark, and Heroku are some of the popular companies that use Erlang, whereas Dart is used by Google, Blossom, and WorkTrail. Erlang has a broader approval, being mentioned in 70 company stacks & 47 developers stacks; compared to Dart, which is listed in 19 company stacks and 78 developer stacks.