isBase64

1/**
2 * Checks if a string is a valid base64 encoded string.
3 *
4 * @param str - The string to be checked.
5 * @returns A boolean indicating whether the string is base64 encoded or not.
6 */
7export function isBase64(str: string): boolean {
8	const base64Regex =
9		/^(?:[A-Za-z0-9+\/]{4})*?(?:[A-Za-z0-9+\/]{2}(?:==)?|[A-Za-z0-9+\/]{3}=?)?$/;
10	return base64Regex.test(str);
11}

1import { isBase64 } from '@/lib/utils'; 
2
3const encodedString = 'R290IFlhIQ==';
4console.log(isBase64(encodedString)); // Outputs: true

1// URL PARAM CHECK
2import { isBase64 } from '@/lib/utils';
3
4export default function Page() {
5    const searchParams = useSearchParams();
6    const hopefullyBase64EncodedParam = searchParams.get('q');
7
8    if(!isBase64(hopefullyBase64EncodedParam)){
9        //Do something
10    }
11    return({/*YOUR CODE*/})
12}