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JavaScript documentation look-up

Last modified: 08 October 2024

PyCharm shows you reference for standard JavaScript APIs, for symbols from your project and from its dependencies, as well as for symbols defined in external libraries. You can view the documentation for symbols in the Documentation popup and open documentation on external sites if links to them are available.

  • For a project symbol or for a symbol from the project dependencies, PyCharm generates the documentation from the corresponding JSDoc comment.

  • For a standard JavaScript object or method, PyCharm shows the corresponding JSDoc comment from the built-in TypeScript definition files d.ts. These files are bundled with PyCharm and updated on a regular basis.

  • If no comment is found in the d.ts files, PyCharm shows a summary from the corresponding MDN article.

By default, documentation is shown in the Documentation popup but you can always open it in the Documentation tool window or even configure it to appear in the Documentation tool window by default.