A small JS type checker
A Roblox Lua port of the `react-is` package from React, which provides constants and runtime check functions for the various valid types of elements that can be created.
valid types
A ridiculously light-weight argument validator (now browser friendly)
Minimal web-style fetch TypeScript typings
StyleX eslint plugin.
Query result type converters for node-postgres
A function to check whether a prop is valid for HTML and SVG elements
TypeScript definitions for valid-url
Astro’s [Go](https://golang.org/) + WASM compiler.
Give me a string and I'll tell you if it's a valid npm package name
Takes a release plan and applies it to packages
Package specifier library
Parsers, transformers and tests for special value types, eg: %, hex codes etc.
The semantic version parser used by npm.
Return true if a value is a valid glob pattern or patterns.
Detect if a string is a data URL
Copy a descriptor from object A to object B
JSON for Humans
TypeScript definitions for is-number
Convert a string to a valid JavaScript identifier
Brand checking of React Elements.
Parse CSS media queries (spec-compliant)
Types for Microsoft Graph objects
Parameter Validation and Type Coercion for Rails
sinatra-param allows you to declare, validate, and transform endpoint parameters as you would in frameworks like ActiveModel or DataMapper.
This library helps validate attributes to specific types in the same way that ActiveModel valiations work. Able to chain additional modifiers to each validation.
Streaming CSV processor with row-by-row transforms, validations, column plucking, streaming each_hash iteration, filtering, writing, error recovery, and automatic delimiter detection.
A zero-dependency Ruby gem for validating hash data against schemas with type checking, coercion, required/optional fields, and custom validators.
A new check for puppet-lint that validates that all parameters are typed.
Adds type validation for classes with ActiveModel::Validations.
Backported from Rails 5.0 to use with 4.x versions
Define environment variable schemas with type casting, required/optional flags, and defaults. Validates at boot time and provides typed accessors.
Forms validations and type casting
The `Type` gem provides tools for type-validation and type-casting, and is useful for ensuring well-formed messages are passed to external APIs/
Define configuration schemas with required and optional keys, type constraints, default values, and allowed value lists. Validates hashes and raises descriptive errors.
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