199 packages found
Function argument validation for humans
- type
- types
- check
- checking
- guard
- guards
- assert
- assertion
- predicate
- predicates
- is
- validate
- validation
- utility
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Infer the content-type of a request.
type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.
Type check values
A type checking library where each exported function returns either true or false and does not throw. Also added tests.
Isomorphic, functional type-checking for Javascript
Type checking and DDD for JavaScript
Simple and Fast Data Validation for Node.js
A simple function to check if a piece of data is truthy. JavaScript version.
- true
- false
- truthy
- falsy
- javascript
- validation
- checking
- data validation
- object validation
- array validation
- set validation
- map validation
Validate an email address according to RFCs 5321, 5322, and others
Blazing fast input validation and transformation ⚡
- @sapphire/shapeshift
- shapeshift
- bot
- typescript
- ts
- yarn
- sapphire
- schema
- validation
- type-checking
- checking
- input-validation
- runtime-validation
- ow
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A set of types, type checks, and type guards for simpler, safer, and easier to read code.
Type checking for JSON values
List of all javascript types. Used and useful for checking, validation, sanitizing and testing. Like isStream, isPromise, isWeakset and etc.
- bool
- boolean
- buffer
- check
- checking
- error
- is
- is-boolean
- is-buffer
- is-error
- is-promise
- is-stream
- json
- kind
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Library to check variable type and properties in object.
check if something is a POJO (plain old javascript object)
Extends the tcomb library with PostCSS irreducible node types.
One lightly library contains a series of methods for converting one string or text to different kind of naming style, such as camelCase, PascalCase, hyphen-case, CONSTANT_CASE, etc.
Fluent type verification for JavaScript