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diff --git a/docs/dev/articles/twa_files/anchor-sections-1.0/anchor-sections.js b/docs/dev/articles/twa_files/anchor-sections-1.0/anchor-sections.js
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--- a/docs/dev/articles/twa_files/anchor-sections-1.0/anchor-sections.js
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@@ -1,33 +0,0 @@
-// Anchor sections v1.0 written by Atsushi Yasumoto on Oct 3rd, 2020.
-document.addEventListener('DOMContentLoaded', function() {
- // Do nothing if AnchorJS is used
- if (typeof window.anchors === 'object' && anchors.hasOwnProperty('hasAnchorJSLink')) {
- return;
- }
-
- const h = document.querySelectorAll('h1, h2, h3, h4, h5, h6');
-
- // Do nothing if sections are already anchored
- if (Array.from(h).some(x => x.classList.contains('hasAnchor'))) {
- return null;
- }
-
- // Use section id when pandoc runs with --section-divs
- const section_id = function(x) {
- return ((x.classList.contains('section') || (x.tagName === 'SECTION'))
- ? x.id : '');
- };
-
- // Add anchors
- h.forEach(function(x) {
- const id = x.id || section_id(x.parentElement);
- if (id === '') {
- return null;
- }
- let anchor = document.createElement('a');
- anchor.href = '#' + id;
- anchor.classList = ['anchor-section'];
- x.classList.add('hasAnchor');
- x.appendChild(anchor);
- });
-});

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