Combinator Packages

Validatem combinator for throwing away the transformed value that comes out of a validator

Validatem combinator that validates a nested/recursive structure, and ensures that each non-array/object value matches certain rules

Validatem combinator for writing 'any one of these must be specified' rules

Additional combinators for fantasy-land Option data structure.

Y combinator for javascript

Combinators for your Promises

Masala Parser

Masala Parser

Validate data with unknown structure

Monadic bottom-up parser combinator library.

Javascript parser combinator library

user-agent-based polyfill combinator

Javascript parser combinator library

Validate data with unknown structure

Validatem combinator for prepending a certain path to validation errors

Validatem combinator for marking a hasShape or object literal rule as allowing additional, unspecified properties

Validatem combinator for specifying 'alternatives', and verifying that a value meets at least one of the rules

Validatem combinator for validating that a value has certain keys that pass certain validators (eg. object validation)

Validatem combinator like array-of, but for cases where the values may be in nested (to-be-flattened) arrays

Combinatory logic interpreter in Typescript.