text: var _createForOfIteratorHelper = require("@babel/runtime-corejs2/helpers/createForOfIteratorHelper").default;
  
  var _iterator = _createForOfIteratorHelper(arr),
      _step;
  
  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var i = _step.value;
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
  