Validate date string

Postgres date column parser

Format validation for Ajv v7+

A tidy ISO 8601 date formatter and parser

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

Work with IANA language tags.

An implementation of the WHATWG URL Standard's URL API and parsing machinery

Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

simple date math util

Node/Js-module for parsing and making sense of ISO8601-durations

Simple data set export to Excel xlsx file

Brand checking of React Elements.

JavaScript date/time utilities for Vega.

JSON for Humans

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

Modern JavaScript date utility library

Copy a descriptor from object A to object B

Detect if a string is a data URL

string-argv parses a string into an argument array to mimic process.argv. This is useful when testing Command Line Utilities that you want to pass arguments to.

Java Script Object eXchange.