zestjq-css Demo

Client-side demos of zest (CSS selector engine) and zestjq (jq JSON-filter language), integrated to query JSON-valued attributes in live Wikipedia articles.
To use these tools in your own project, see the zestjq-css package README.

Zest github:cscott/zest

A fast CSS selector engine extended with a [attr/jq] operator that evaluates jq expressions against JSON-valued attributes — ideal for querying MediaWiki Parsoid HTML.

Wikipedia Page

CSS Selector

Fetch a page and enter a selector.

Try these selectors

MediaWiki attributes

data-mw / jq (/ operator)

Matched Elements (serialized)

Results will appear here.

ZestJQ npm install zestjq

A native TypeScript/JavaScript implementation of the jq JSON query language. Populated automatically from the data-mw attribute of matched elements.

JSON Input

jq Filter

Output

Press Run to evaluate the filter.

Try these filters

MediaWiki data-mw

Live Document

Fetching Wikipedia article…