text: // 20.2.2.9 Math.cbrt(x)
  var $export = require('./_export');
  var sign = require('./_math-sign');
  
  $export($export.S, 'Math', {
    cbrt: function cbrt(x) {
      return sign(x = +x) * Math.pow(Math.abs(x), 1 / 3);
    }
  });
  