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Erlang vs FStar: What are the differences?
Developers describe Erlang as "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. On the other hand, FStar is detailed as "An ML-like language aimed at program verification". F* (pronounced F star) is an ML-like functional programming language aimed at program verification. Its type system includes polymorphism, dependent types, monadic effects, refinement types, and a weakest precondition calculus. Together, these features allow expressing precise and compact specifications for programs, including functional correctness and security properties.
Erlang and FStar belong to "Languages" category of the tech stack.
Erlang and FStar are both open source tools. Erlang with 7.74K GitHub stars and 2.1K forks on GitHub appears to be more popular than FStar with 1.64K GitHub stars and 147 GitHub forks.
Pros of Erlang
- Real time, distributed applications62
- Concurrency Support62
- Fault tolerance58
- Soft real-time36
- Open source32
- Message passing22
- Functional programming22
- Immutable data16
- Works as expected14
- Facebook chat uses it at backend6
- Practical5
- Knowledgeable community5
- Bullets included4
- WhatsApp uses it at backend1
Pros of FStar
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Cons of Erlang
- Languange is not popular demand1