Validation

Test if a value is object-like.

Test if a value is a Buffer object.

Return a function which tests if every element in an array passes a test condition.

Test if a value is a function.

Spectral ruleset for validating IBM Cloud services

Test if a value is an object.

Test if a value is a plain object.

Test if a value is a regular expression.

Turn valid member expression property literals into plain identifiers

Turn valid property key literals to plain identifiers

validate express application inputs and parameters using joi

Test if a value is a Float64Array.

A React component for input text field

Test if a value is a Float32Array.

Test if a value is a number.

Validation for TypeScript

Automatically validate API requests and responses with OpenAPI 3 and Express.

Common error messages for css panda

RFC 6265 compliant cookie parser, validator and serializer.

Test if a value is a Uint8Array.

Test if a value is a Uint32Array.

Test if a value is a Uint16Array.

check if a string is a valid JSON string without using Try/Catch

TypeScript's 1:1 validator, optimized from editor to runtime

validate SPDX license expressions

A simple and composable way to validate data in JavaScript (and TypeScript).

Module AST validations

Validation rule for GraphQL query complexity analysis

Validation for your environment variables

Swagger 2.0 and OpenAPI 3.x parser and validator for Node and browsers

Parse, normalize and validate given semver shorthand (e.g. gulp@v3.8.10) to object.

The ajv-8 based validator for @rjsf/core

Check two valid geojson geometries for equality.

JSON Schema validation for Human

turf boolean-valid module

Test if a value is a regular expression string.

Restrict inputs to certain valid characters (e.g. formatting phone or card numbers)

Simple, lightweight model-based validation for Vue.js

Validators for Vuelidate

XML validation APIs

Detect Filetype by bytes

json2csv built-in formatters. A formatter is a function that receives the raw js value of a given type and formats it as a valid CSV cell.

Validation and warning infrastructure for Sanity projects

A Pothos plugin for adding schema based validation

A JavaScript implementation of a extendable, fully compliant JSON Schema validator.

Blazing fast input validation and transformation ⚡

validates style objects by ensuring they only have valid keys

Formatting of io-ts validation errors

Objects used to track values and their dirtiness in Glimmer

Easily validate Okta access tokens