wordwrap js

function wordWrap(s, width, brk, cut) {
  var r = '(?:(.{1,' + width + '})[ \\t\\r]+|(\\S{' + width + (cut ? ',' : '') + '})|(.{' + width + '}))(?!$)';
  r = new RegExp(r, 'g');
  // console.log(r);
  return s.replace(r, '$1$2$3' + (brk || '\n'));
}