MediaWiki:Common.js
From WikiMSK
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/* Any JavaScript here will be loaded for all users on every page load. */
$(document).ready(function() {
// Get all the <h2> headings
const headings = document.querySelectorAll('.mw-parser-output h2');
for (i = 0; i < headings.length; i++) {
console.log(headings[i]);
headings[i].innerHTML = `
<button aria-expanded="false">
${heading.textContent}
<svg aria-hidden="true" focusable="false" viewBox="0 0 10 10">
<rect class="vert" height="8" width="2" y="1" x="4"/>
<rect height="2" width="8" y="4" x="1"/>
</svg>
</button>
`
}
});