JavaScript Chat Summary: December 3, 2019

Below is a summary of the discussion from this week’s JavaScriptJavaScript JavaScript or JS is an object-oriented computer programming language commonly used to create interactive effects within web browsers. WordPress makes extensive use of JS for a better user experience. While PHP is executed on the server, JS executes within a user’s browser. chat (agendaSlack Transcript).

Have a topic for discussion for the next meeting? Leave a suggested edit on next week’s agenda.

Follow-Up: Types Checking

(Slack conversation, previous meeting summary)

A new tracking issue was created for modules types effort, including some rough guidelines toward the bottom of the comment.

@aduth shared a small pull request to demonstrate how this task can look for simpler modules, as a point of reference for others who might be interested in contributed.

Last week, there was some discussion about necessary changes for the automated documentation tool (“docgen”). A summary of these findings was shared on the corresponding issue.


  • @gziolo mentions that the effectiveness this process will need to be validated by other volunteers.
  • @aduth suggests a simple approach to testing types in a file by adding // @ts-check as a line at the top of a file.
  • @gziolo suggests it could be helpful to create a screencast to demonstrate the effort, referencing a similar example shared by @mkaz.

Action items:

  • Consider recording a screencast to demonstrate the effort of converting a package to be typed. (Tentatively owned by @mkaz)

JSDoc Standards

(Slack conversation)

Using JSDoc for types validation will force us to write better, more accurate JSDoc, which may require some new or updated guidelines (see current guidelines).

A few specific examples are mentioned:

  • Deemphasis of Backbone guidelines
  • Updates with respect to modernized syntaxes, files structure
  • TypeScript-specific JSDoc syntax extensions


  • Since these observations are limited to GutenbergGutenberg The Gutenberg project is the new Editor Interface for WordPress. The editor improves the process and experience of creating new content, making writing rich content much simpler. It uses ‘blocks’ to add richness rather than shortcodes, custom HTML etc. use of ES2015 modules for files structuring and TypeScript tooling, it may make more sense for these supplementary guidelines to exist in the Gutenberg documentation.
  • Taking cues from the coding guidelines, the handbook standard can serve as a base upon which Gutenberg-specific recommendations can extend. Common guidelines should live in the JSDoc handbook, proposed for migrationMigration Moving the code, database and media files for a website site from one server to another. Most typically done when changing hosting companies. as appropriate similar to that done previously for Gutenberg JavaScript standards.


  • Propose standards documentation for JSDoc syntax relevant for clarifying uncertainties in the types-checking effort. (Owned by @aduth)

#core-js, #javascript