docs: function equalSimpleArrays(arr1, arr2) {
  
  	if (arr1 && (arr1.length > 0))
  		return (
  			arr2 &&
  				(arr2.length === arr1.length) &&
  				arr2.every((v, i) => (v === arr1[i]))
  		);
  
  	return (!arr2 || (arr2.length === 0));
  }