function bgBlack(str) {
  return run(
    str,
    code([
      40,
    ], 49),
  );
}
/**
 * Set background color to black.
 * @param str text to make its background black
 */
Set background color to black.
@param str text to make its background black
Set background color to black . @param str text to make its background black
function bgBlack(str) {
  return run(
    str,
    code([
      40,
    ], 49),
  );
}
function bgBlack ( str ) { return run ( str , code ( [ 40 , ] , 49 ) , ) ; }
Set background color to black.
Set background color to black .