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270 packages found
2 functions that check if argument is or is not string
A set of type checks, guards, and predicates for simpler, safer, and easier to read code.
Simplistic and minimal runtime type checking system for Node.js applications
Function argument validation for humans
- type
- types
- check
- checking
- guard
- guards
- assert
- assertion
- predicate
- predicates
- is
- validate
- validation
- utility
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Function triggers error if argument is not float of type 'number'
Utilities library for type checking and other useful things. Already more than 35 functions. Each function returns false or true, that's it. Perfect for front and back ends.
Runtime type checking for JavaScript/CoffeeScript/LiveScript
Lightweight replacement for the ow validation library meant for browser usage.
Bulletproof type checking for JavaScript
The object validator for TypeScript.
- scheme
- object
- typesafe
- typescript
- firebase
- type
- types
- check
- checking
- validator
- validate
- validation
- utility
- util
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Angular form validation on steroids
Type checking and DDD for JavaScript
defining interfaces for class structure and auto-type checking in javascript for Node.js
Function triggers error if argument is neither a primitive type or array
Function triggers error if argument is not finite number of type 'number'
A NodeJS type checking and casting library
Infer the content-type of a request using Fetch API interfaces.
Cuffs is a library that gives you authority over your javascript values. It let's you check, cast and fix a javascript value to a certain type.