Declare a Read-Only Variable with the const Keyword - doesn't work

Tell us what’s happening:

Your code so far


function printManyTimes(str) {
  "use strict";

  // change code below this line

  const SENTENCE = str + " is cool!";
  for(let i = 0; i < str.length; i+=2) {
    console.log(SENTENCE);
  }

  // change code above this line

}
printManyTimes("freeCodeCamp");

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/es6/declare-a-read-only-variable-with-the-const-keyword/

Thank you very much.