JS data validator

Convert a string to a valid JavaScript identifier

A function to check whether a prop is valid for HTML and SVG elements

Return true if a value is a valid glob pattern or patterns.

TypeScript definitions for valid-url

Check if a string is a valid filename

Checks if the geometry is a valid according to the OGC Simple Feature Specification.

Convert a string to a valid safe filename

Returns true if a value is a valid instance of Base.

Wrapper around is-valid-instance and is-registered for validating `base` plugins. Returns true if `app` is a valid instance of base and a plugin is not registered yet.

Compile objects with duplicate keys to valid strict ES5

Check if a buffer contains valid UTF-8

Check if a number is a valid month

check if a string is a valid ECMAscript identifier

Returns true if a value has the characteristics of a valid JavaScript data descriptor.

Give me a string and I'll tell you if it's a valid npm package name

Check if a string is a valid JavaScript identifier

Assert a given object is a valid glob option

> Check if CNPJ is valid.

TypeScript definitions for valid-data-url