${function() { const defaultSelectedVariant = data.variants.find(v => v.available) || data.variants[0]; const defaultIndex = !!defaultSelectedVariant ? data.images.findIndex(img => img.src == (defaultSelectedVariant.image && defaultSelectedVariant.image.src)) : -1; const initialSlide = defaultIndex == -1 ? 0 : defaultIndex; const attrs = data.images.length > 1 ? 'slide controls' : ''; return ` ${data.images.map(img => ` `).join('')} `; }()} ${data.images.map((img, index) => ` `).join('')}