MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
$(document).ready(function() {
    $('h2').each(function() {
        var $h2 = $(this);
        var $editSpan = $h2.find('.mw-editsection');
        if ($editSpan.length) {
            var originalTop = $editSpan.offset().top;
            var $nextH2 = $h2.nextAll('h2').first();
            var nextH2Top = $nextH2.length ? $nextH2.offset().top : Number.MAX_SAFE_INTEGER;

            $editSpan.data('originalTop', originalTop);
            $editSpan.data('nextH2Top', nextH2Top);
        }
    });

    $(window).on('scroll', function() {
        var scrollTop = $(window).scrollTop();
        $('.mw-editsection').each(function() {
            var $editSpan = $(this);
            var originalTop = $editSpan.data('originalTop');
            var nextH2Top = $editSpan.data('nextH2Top');

            if (scrollTop >= originalTop && scrollTop < nextH2Top) {
                $editSpan.addClass('fixed-edit-button');
            } else {
                $editSpan.removeClass('fixed-edit-button');
            }
        });
    });


  var $elem = jQuery('<script/>', { 
    'data-aff': "amazon.com, www.amazon.com : tag = internsocie02-20",
    'type': "text/javascript", 
    'src': "https://cdn.jsdelivr.net/npm/affiliate@2.0.3/dist/affiliate.js",
    'id': "aff-js",
    'async': "" 
  });
  $("head").append($elem);


});