Fix Prism API name: highlightElem -> highlightElement in MutationObserver article#3980
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iliakan merged 1 commit intoJul 19, 2026
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The article's prose and inline examples use Prism.highlightElem, which does not exist in the Prism.js API, while the demo code later in the same article correctly uses Prism.highlightElement. Unify on the real API name. Also pass only the element in forEach callbacks: forEach supplies (element, index, array), which would collide with the highlightElement(element, async, callback) signature if the method reference is passed directly. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MizgRqMWEBSTYhJ9YhSd2g
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Pull request overview
This PR fixes the MutationObserver tutorial article to consistently reference the correct Prism.js API (Prism.highlightElement) and updates the inline examples so they don’t accidentally pass forEach’s extra arguments into Prism’s highlightElement(element, async, callback) signature.
Changes:
- Replaced prose references to the non-existent
Prism.highlightElemwithPrism.highlightElement. - Updated inline
forEach(Prism.highlightElement)-style calls toforEach(elem => Prism.highlightElement(elem))so only the element is passed. - Kept the article’s demo code and inline examples consistent on the same Prism API.
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Fixes #3979
The MutationObserver article's prose and inline examples use
Prism.highlightElem, which does not exist in the Prism.js API, while the demo code later in the same article correctly usesPrism.highlightElement. This PR unifies all 6 occurrences on the real API name.It also changes the two
forEach(Prism.highlightElement)calls to pass only the element via an arrow function, sinceforEachsupplies(element, index, array)which would collide with thehighlightElement(element, async, callback)signature.🤖 Generated with Claude Code
https://claude.ai/code/session_01MizgRqMWEBSTYhJ9YhSd2g