Function slugFromUrl

slugFromUrl(url: string): null | string

Pulls the single-segment product slug out of a ScienceLab URL.

Product pages live at the site root (https://sciencelab.com/<slug>/); anything nested (a category or CMS page) is rejected so the sitemap's non-product entries are skipped.

Parameters

url: string
A URL from the sitemap (absolute).

Returns null | string

The decoded slug, or null when the URL isn't a root-level product.

Example

slugFromUrl('https://sciencelab.com/isopropyl-alcohol-70-v-v/'); // "isopropyl-alcohol-70-v-v"
slugFromUrl('https://sciencelab.com/brands/acme/'); // null

Source

export function slugFromUrl(url: string): string | null {
  let path: string;
  try {
    path = new URL(url).pathname;
  } catch {
    return null;
  }
  const slug = path.replace(/^\/+|\/+$/g, '');
  return slug && !slug.includes('/') ? decodeURIComponent(slug) : null;
}