Source: node-prop-types Section: javascript Priority: optional Maintainer: Debian Javascript Maintainers Uploaders: Pirate Praveen Build-Depends: debhelper (>= 9) , dh-buildinfo , nodejs , node-fbjs (>= 0.8.16) , webpack , uglifyjs Standards-Version: 4.1.3 Homepage: https://facebook.github.io/react/ Vcs-Git: https://anonscm.debian.org/git/pkg-javascript/node-prop-types.git Vcs-Browser: https://anonscm.debian.org/cgit/pkg-javascript/node-prop-types.git Package: node-prop-types Architecture: all Depends: ${misc:Depends} , nodejs , node-fbjs (>= 0.8.16) , node-loose-envify (>= 1.3.1) , node-object-assign (>= 4.1.1) Description: Runtime type checking for React props and similar objects You can use prop-types to document the intended types of properties passed to components. React (and potentially other libraries) will check props passed to your components against those definitions, and warn in development if they don’t match. . Node.js is an event-based server-side JavaScript engine.