Voca

A JavaScript date library for parsing, validating, manipulating, and formatting dates. Moment was designed to work both in the browser and in Node.js. All code should work in both of these environments, and all unit tests are run in both of these environments. Moment.js has been successfully used in millions of projects. As of September 2020, Moment gets over 12 million downloads per week! Moment has evolved somewhat over the years, but it has essentially the same design as it did when it was created in 2011. Moment works well on Internet Explorer 8 and higher. Some libraries are split into modules, plugins, or companion libraries. Some libraries use the ECMAScript Intl API for locales, time zones, or both. Some libraries still provide their own locale and time zone files as Moment and Moment-Timezone do. Because different locales define week of year numbering differently, Moment.js added options to get/set the localized week of the year.

Emotion is a performant, flexible CSS-in-JS library designed for writing CSS styles using JavaScript, supporting both string-based and object-based styles while delivering a strong developer experience, complete with source maps, labels, and testing utilities. It offers two powerful usage patterns; a framework-agnostic approach which requires no special configuration yet supports vendor-prefixing, nested selectors, media queries, and class composition through the CSS and CX functions; and a React-optimized variant providing advanced features like the CSS prop for direct styling (similar to the style prop but with support for nested selectors, media queries, and theming capabilities), zero-configuration server-side rendering, native theming, and compatibility with ESLint tooling. Emotion also supports styled-component-like APIs, enabling tag-based or component-based styled elements with dynamic prop-driven styling.