schema
matcher-combinators
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schema | matcher-combinators | |
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9 | 3 | |
2,380 | 436 | |
0.0% | 1.8% | |
0.0 | 0.0 | |
about 1 year ago | 3 months ago | |
Clojure | Clojure | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
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schema
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Tired by the dynamicism
Plumatic schema (https://github.com/plumatic/schema) , or friends I might be wrong, but I think schema might make more sense to you coming from the F# world (might be wrong)
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Clojure from a Schemer's perspective
This one? I didn't. I hear good things about it, and it's reached a point of maturity, being widely used in production.
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Worrying comment from HN on Building a Startup on Clojure
Uhhh spec has existed for a long time and before that, schema Nowadays we also have the excellent malli. If his codebase is full of functions where the shape of the data isn’t obvious, isn’t documented and isn’t specified in a specific/schema, that’s on him and his bad coding practices and really no different from passing data in other dynamic languages. A class by itself (without additional effort) only gives you field names.
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Building a Startup on Clojure
I don't understand this reputation either. There are very large systems built on other Lisps. For example, Emacs has a massive amount of Elisp. Elisp is much more primitive than Clojure, and traditionally libraries don't use e.g. data schemas [1] as runtime contracts for data.
Obviously, once a system built on top of a dynamic language grows beyond certain threshold, you need to be very disciplined as there are no static types to ensure some degree of correctness.
[1] https://github.com/plumatic/schema
- Clojure needs a Rails, but not for the reason you think
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General anxiety regarding learning Clojure and such
Try to learn a schema library early, like Malli or Prismatic Schema. Do not mistook them as "static-typing" things - it's more for data validation and coercion than "security that things will get the right typing information". The idea to learn them early is how you'll shape future code: validating all "output data" first, them using that data inside your program without "defensive programming" like checking every time if a specific value on a map is nil, etc
- Six years of professional Clojure development
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What are some great Clojure libraries, as of 2021?
In Clojure, declarative data specifications for validation and generation are also very mainstream. Schema was first out the door, Clojure Spec is the most popular library, while malli is gaining popularity fast at the moment.
matcher-combinators
- Matcher-combinator: compare nested data structures
- nubank/matcher-combinators: Library for creating matcher combinators to compare nested data structures (great for tests)
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General anxiety regarding learning Clojure and such
If you decide to learn more about tests, see the library Matcher Combinators.
What are some alternatives?
malli - High-performance data-driven data specification library for Clojure/Script.
clj-kondo - Static analyzer and linter for Clojure code that sparks joy
check
specter - Clojure(Script)'s missing piece
matcho - Simpliest pattern matching you've ever seen
clojure-dsl-resources - A curated list of Clojure resources for dealing with domain-specific languages.
fulcro - A library for development of single-page full-stack web applications in clj/cljs
coalton - Coalton is an efficient, statically typed functional programming language that supercharges Common Lisp.
janet - A dynamic language and bytecode vm
meander - Tools for transparent data transformation
clojure-graph-resources - A curated list of Clojure resources for dealing with graph-like data.