User:Macaw*/noRefListAlert.js

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This user script seems to have a documentation page at User:Macaw*/noRefListAlert.

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mw.hook('wikipage.content').add(function($content) {
    if (mw.config.get('wgAction') !== 'view') {
        return;
    }
    if (mw.config.get('wgIsRedirect')) {
        return;
    }
    if (mw.config.get('wgArticleId') === 0) {
        return;
    }
    
    var ns = mw.config.get('wgNamespaceNumber');
    var title = mw.config.get('wgTitle').replace(/_/g, ' ');
    if (title === 'Main Page') {
        return;
    }
  
    var isValidNamespace = (ns === 0 || ns === 118);
  
    var rawHTML = $content.html();
    // Use regex to check for the presence of the reflist template (with possible params) or references tag.
    var hasWikitextRefMarker = /{{\s*reflist\b/i.test(rawHTML) ||
                               /<references\b/i.test(rawHTML);
  
    if (isValidNamespace && !hasWikitextRefMarker) {
        var warningMessage = document.createElement('div');
        warningMessage.style.backgroundColor = '#ffcc00';
        warningMessage.style.color = '#000';
        warningMessage.style.padding = '10px';
        warningMessage.style.fontSize = '16px';
        warningMessage.style.fontWeight = 'bold';
        warningMessage.style.position = 'relative';
        warningMessage.style.zIndex = '1000';
        warningMessage.style.marginBottom = '20px';
        warningMessage.innerHTML = 'Warning: This page does not contain a references section.';
  
        var $firstHeading = $('#firstHeading');
        if ($firstHeading.length) {
            $firstHeading.after(warningMessage);
        }
    }
});