User:Epicgenius/hideimages.js

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This user script seems to have a documentation page at User:Epicgenius/hideimages.

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mw.loader.using('mediawiki.util').then(function () {
    var hidden = false;

    function toggleImages() {
        document.querySelectorAll('img').forEach(function (img) {
            img.style.visibility = hidden ? '' : 'hidden';
        });

        hidden = !hidden;

        var link = document.getElementById('toggle-images-link');
        if (link) {
            link.textContent = hidden ? 'Show images' : 'Hide images';
        }
    }

    $(function () {
        var portlet = mw.util.addPortletLink(
            'p-tb',
            '#',
            'Hide images',
            'toggle-images-link',
            'Show or hide all images on this page'
        );

        if (portlet) {
            $(portlet).on('click', function (event) {
                event.preventDefault();
                toggleImages();
            });
        }
    });
});