1import {URL} from 'react-native-url-polyfill'; 2 3export default function getUrlExt(url?: string) { 4 if (!url) { 5 return; 6 } 7 const urlObj = new URL(url); 8 const filePath = urlObj.pathname; 9 10 return ( 11 filePath.substring(filePath.lastIndexOf('.'), filePath.length) || 12 filePath 13 ); 14} 15