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6000 packages found
Standard assertion utilities.
- stdlib
- stdassert
- assertion
- assert
- expectation
- expect
- utilities
- utility
- utils
- util
- test
- check
- validate
- validation
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Check if a path is a file, directory, or symlink
Returns true if the value is an object and not an array or null.
Improved typeof detection for node.js and the browser.
Avro for JavaScript
Zod Type Provider for Fastify@4
Function argument validation for humans
- type
- types
- check
- checking
- guard
- guards
- assert
- assertion
- predicate
- predicates
- is
- validate
- validation
- utility
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Runtime library to validate data against TypeScript interfaces
A simple TypeScript library providing type guards for the primitive types in JavaScript.
- type
- types
- type-check
- type-checks
- type-checking
- predicate
- predicates
- type-predicate
- type-predicates
- type-assert
- type-asserting
- type-assertion
- type-assertions
- type-guard
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TypeScript-first schema declaration and validation library with static type inference
Valibot Type Provider for Fastify@4
Long number type for Mongoose
TypeScript-first schema declaration and validation library with static type inference
TypeScript-first schema declaration and validation library with static type inference
Zod Type Provider for Fastify@4
A little library for asserting types and values, with zero dependencies.
- type
- types
- type-check
- type-checking
- duck-typing
- arguments
- parameters
- values
- data
- contract
- assert
- check
- verify
- safe
Test if a value is a collection.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- array
- typed array
- collection
- float64array
- float32array
- int32array
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Runtime validation and processing of JavaScript types
focus on the essential experience
- grommet
- grommet.io
- grommetux
- component
- library
- design system
- framework
- react
- theme
- theming
- templates
- sticker sheets
- design patterns
- app templates
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TypeScript schema declaration and validation library with static type inference