MEDIAWIKI:GADGET-AUTONUM.JS

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/**

 * Auto-number headings

 *

 * @source https://www.mediawiki.org/wiki/Snippets/Auto-number_headings

 * @author Krinkle

 * @version 2024-04-25

 */

var toc = document.querySelector('#toc');

if (toc) {

  // Support legacy Parser: <h2><span class=mw-headline id=…>

  // Support Parsoid: <section><div class=mw-heading><h2 id…>

  document.querySelectorAll('.mw-parser-output :is(h1,h2,h3,h4,h5,h6) .mw-headline[id], .mw-parser-output .mw-heading [id]:is(h1,h2,h3,h4,h5,h6)').forEach(function (headline) {

    var num = toc.querySelector('a[href="#' + CSS.escape(headline.id) + '"] .tocnumber');

    if (num) headline.prepend(num.textContent + ' ');

  });

} else {

  document.body.classList.add('tpl-autonum');

}

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