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generator | parser | |
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5 | 4 | |
4 | 5 | |
- | - | |
7.7 | 6.6 | |
6 months ago | 18 days ago | |
TypeScript | TypeScript | |
MIT License | MIT License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
generator
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Ramda: A practical functional library for JavaScript programmers
I find straight forward, dedicated combinators much more readable and practical to use ie. for iterables (context where it makes a lot of sense) [0] example [1], runtime assertions (through refutations, which are much faster than combinators over assertions) [2], parser combinators for smallish grammars [3] etc.
In many cases vanilla/imperative js is more readable and terse, no need to bring functional fanaticism everywhere, just in places where it gives true benefits and in form that can be understood by peers.
Functional code can be beautiful and can also be unreadable/undebugable. Same with imperative code. It's great in js/ts you can pick approach where the problem is expressed more naturally and mix it at will.
[0] https://github.com/preludejs/generator
[1] https://observablehq.com/@mirek/project-euler
[2] https://github.com/preludejs/refute
[3] https://github.com/preludejs/parser
- Why Would Anyone Need JavaScript Generator Functions?
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A pipe operator for JavaScript: introduction and use cases
You can type it, take a look at pipe and pipe1 in [0].
[0] https://github.com/preludejs/generator/tree/master/src
- Parser Combinators in Haskell
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Loopless Code
Loops are great if your programming languages supports iterables/iterators/generators (also async generators) like in js/ts for example.
Especially generator-to-generator combinators ie. [0] give you terse, transducer expressiveness over computation on finite/infinite streams, arrays, etc. (all iterables). It's easy to compose them, jump into for loops if needed for arbitrary yielding (ie. yielding multiple items sometimes, skipping some, halting etc). `continue`, `break`, nesting, yield, yield from, normal code in for loops is very intuitive and terse creating pleasant, understandable code.
[0] https://github.com/preludejs/generator
parser
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Ramda: A practical functional library for JavaScript programmers
I find straight forward, dedicated combinators much more readable and practical to use ie. for iterables (context where it makes a lot of sense) [0] example [1], runtime assertions (through refutations, which are much faster than combinators over assertions) [2], parser combinators for smallish grammars [3] etc.
In many cases vanilla/imperative js is more readable and terse, no need to bring functional fanaticism everywhere, just in places where it gives true benefits and in form that can be understood by peers.
Functional code can be beautiful and can also be unreadable/undebugable. Same with imperative code. It's great in js/ts you can pick approach where the problem is expressed more naturally and mix it at will.
[0] https://github.com/preludejs/generator
[1] https://observablehq.com/@mirek/project-euler
[2] https://github.com/preludejs/refute
[3] https://github.com/preludejs/parser
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Parsing Text with Nom
Parser combinators are great, we're using parser combinators in production, they are great ie. for typescript [0].
[0] https://github.com/preludejs/parser
- Parser Combinators in Haskell
- Casual Parsing in JavaScript
What are some alternatives?
angstrom - Parser combinators built for speed and memory efficiency
instaparse
assert-combinators - Functional assertion combinators.
pyparsing - Python library for creating PEG parsers
ppipe - pipes values through functions, an alternative to using the proposed pipe operator ( |> ) for ES
notion-sdk-js - Official Notion JavaScript Client
three-pass-compiler - Solution to the Three Pass Compiler kata on CodeWars, parsing and manipulating a very simple AST
IxJS - The Interactive Extensions for JavaScript
parser-combinators - Parser combinators.
async-generator - Async generator module.