Viewing Reference Information
WebStorm lets you get reference for standard APIs, for symbols from your project and from its dependencies, as well as for symbols defined in external libraries. For npm packages, WebStorm shows their
readme files when you invoke documentation look-up from
import statements or from
package.json files. The documentation is shown in a Documentation pop-up window that helps navigate to the related symbols via hyperlinks, and provides a toolbar for moving back and forth through the already navigated pages.