https://fischelenlinea.com/js/OG.js?v=7

1// JavaScript para actualizar dinámicamente los meta tags
2window.updateMetaTags = function (metaTags) {
3    for (const [key, value] of Object.entries(metaTags)) {
4        let meta = document.querySelector(`meta[property="${key}"]`);
5        if (!meta) {
6            meta = document.createElement("meta");
7            meta.setAttribute("property", key);
8            document.head.appendChild(meta);
9        }
10        meta.setAttribute("content", value);
11    }
12};
13
14function setMetaContent(selector, attr, attrValue, content) {
15    let meta = document.querySelector(selector);
16    if (!meta) {
17        meta = document.createElement("meta");
18        meta.setAttribute(attr, attrValue);
19        document.head.appendChild(meta);
20    }
21    meta.setAttribute("content", content);
22}
23
24function updateCategorySeoMeta(titleOrSeo, description) {
25    const seo = (titleOrSeo && typeof titleOrSeo === "object")
26        ? titleOrSeo
27        : { title: titleOrSeo, description: description };
28
29    const title = seo.title || seo.metaTitle || seo.MetaTitle;
30    const desc = seo.description || seo.metaDescription || seo.MetaDescription;
31
32    if (title) {
33        document.title = title;
34    }
35
36    if (desc) {
37        setMetaContent('meta[name="description"]', "name", "description", desc);
38    }
39
40    const keywords = seo.keywords || seo.metaKeywords || seo.MetaKeywords || seo.KeywordsCategory;
41    if (keywords) {
42        setMetaContent('meta[name="keywords"]', "name", "keywords", keywords);
43    }
44
45    const pairs = [
46        ['meta[property="og:title"]', "property", "og:title", seo.ogTitle || seo.OgTitle || title],
47        ['meta[property="og:description"]', "property", "og:description", seo.ogDescription || seo.OgDescription || desc],
48        ['meta[property="og:image"]', "property", "og:image", seo.ogImage || seo.OgImage],
49        ['meta[property="og:url"]', "property", "og:url", seo.ogUrl || seo.OgUrl],
50        ['meta[property="og:type"]', "property", "og:type", seo.ogType || seo.OgType],
51        ['meta[property="og:site_name"]', "property", "og:site_name", seo.ogSiteName || seo.OgSiteName],
52        ['meta[property="og:image:alt"]', "property", "og:image:alt", seo.ogImageAlt || seo.OgImageAlt],
53        ['meta[name="twitter:card"]', "name", "twitter:card", seo.twitterCard || seo.TwitterCard],
54        ['meta[name="twitter:site"]', "name", "twitter:site", seo.twitterSite || seo.TwitterSite],
55        ['meta[name="twitter:creator"]', "name", "twitter:creator", seo.twitterCreator || seo.TwitterCreator],
56        ['meta[name="twitter:title"]', "name", "twitter:title", seo.twitterTitle || seo.TwitterTitle || title],
57        ['meta[name="twitter:description"]', "name", "twitter:description", seo.twitterDescription || seo.TwitterDescription || desc],
58        ['meta[name="twitter:image"]', "name", "twitter:image", seo.twitterImage || seo.TwitterImage],
59        ['meta[name="twitter:url"]', "name", "twitter:url", seo.twitterUrl || seo.TwitterUrl]
60    ];
61
62    for (const [selector, attr, attrValue, content] of pairs) {
63        if (content) {
64            setMetaContent(selector, attr, attrValue, content);
65        }
66    }
67}