Tricky Javascript Code Snippets Asked In the Interview

Yet again , Thanks for such a great article yogesh ... May i know how it is treated as no reassignment of number in this case .... as number is declared with const ... Thanks :)

const number = 1;

const result = (function (number) {
  delete number;
  return number;
})(10);

Nice article as usual Yogesh Chavan. I love these little test snippets which I'm now starting to get better at solving since working on interview prep.