There is a rule in JS: Never use arguments, opt to use rest syntax ... instead. Ok, let's try. I write:

let arr = [ 16, 'mother', 'kids'];

function concatenateAll(...arr) {
  return arr.join('');
}

But the output in the console doesn't satisfy the rule. Where is my mistake?

There is a rule in JS: Never use arguments, opt to use rest syntax ... instead. Ok, let's try. I write:

let arr = [16, 'mother', 'kids'];

function concatenateAll(...arr) {
  return arr.join('');
}

But the output in the console doesn't satisfy the rule. Where is my mistake?