I was not able to understand what is wrong with my code Use export to Reuse a Code Block

Tell us what’s happening:

Your code so far


"use strict";
export const foo = "bar";
export const bar= "foo";

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/es6/use-export-to-reuse-a-code-block/