text: // falsey data
  let falseyData=[false, "", '', ``, 0,-0, NaN, undefined, null, 0n];
  // nullish data
  let nullishData=[null, undefined];
  //checking if a value is falsey
  function isFalsey(data){
    if(data){
      return false;
    }else{
      return true;
    }
  };
  // short hand
  function _isFaley(data){
    return data || true;
  };
  // nulish coalecing -> checks that a variable is null or undefined only
  function isNullish(data){
    return data ?? true;
  }
  