Haskell vs Lua: What are the differences?
Haskell: An advanced purely-functional programming language. ; Lua: Powerful, fast, lightweight, embeddable scripting language. Lua combines simple procedural syntax with powerful data description constructs based on associative arrays and extensible semantics. Lua is dynamically typed, runs by interpreting bytecode for a register-based virtual machine, and has automatic memory management with incremental garbage collection, making it ideal for configuration, scripting, and rapid prototyping.
Haskell and Lua can be primarily classified as "Languages" tools.
"Purely-functional programming " is the top reason why over 72 developers like Haskell, while over 19 developers mention "Fast learning curve" as the leading cause for choosing Lua.
Lua is an open source tool with 1.26K GitHub stars and 437 GitHub forks. Here's a link to Lua's open source repository on GitHub.
According to the StackShare community, Haskell has a broader approval, being mentioned in 33 company stacks & 45 developers stacks; compared to Lua, which is listed in 55 company stacks and 22 developer stacks.
What is Haskell?
What is Lua?
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To handle its growing observability needs, Postmates created and open sourced Cernan, a telemetry and logging aggregation server. Ceran is built on Rust and Lua, and can ingest data from many sources and then push or exposes what it’s collected to many destinations, or “sinks.” It can also create or manipulate in-flight data with programmable Lua filters.
At Kong while building an internal tool, we struggled to route metrics to Prometheus and logs to Logstash without incurring too much latency in our metrics collection.
We replaced nginx with OpenResty on the edge of our tool which allowed us to use the lua-nginx-module to run Lua code that captures metrics and records telemetry data during every request’s log phase. Our code then pushes the metrics to a local aggregator process (written in Go) which in turn exposes them in Prometheus Exposition Format for consumption by Prometheus. This solution reduced the number of components we needed to maintain and is fast thanks to NGINX and LuaJIT.
Why I am using Haskell in my free time?
I have 3 reasons for it. I am looking for:
Improve functional programming skill.
Improve problem-solving skill.
Laziness and mathematical abstractions behind Haskell makes it a wonderful language.
It is Pure functional, it helps me to write better Scala code.
Highly expressive language gives elegant ways to solve coding puzzle.
used lua as gameplay glue while at insomniac. one my favorite wins was integrating table support. it took walking the source code in a debugger to figure it out, still remember being at work at 3am when i got it working finally. (no google back then to make such things simple.)
We use Lua as our primary scripting language for third party developers - it's fast, the runtime can be quite small and fits into everywhere it needs to go - from mobile to web.
I have been study with videos and tutorials
Lua is used as the programming language for all extensions and the main business logic.
Backend logic (REST, Auth0, Redis, Postgres, functional graph library (fgl), ...)