import { isDefined } from './isDefined'; export const isURL = (url: string | undefined | null) => isDefined(url) && url.match( /^(https?:\/\/)?(www.)?[-a-zA-Z0-9@:%._+~#=]{1,256}\.[a-z]{2,63}\b([-a-zA-Z0-9@:%_+.~#?&//=]*)/i, );