text: 'use strict';
  // https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatMap
  var $export = require('./_export');
  var flattenIntoArray = require('./_flatten-into-array');
  var toObject = require('./_to-object');
  var toLength = require('./_to-length');
  var aFunction = require('./_a-function');
  var arraySpeciesCreate = require('./_array-species-create');
  
  $export($export.P, 'Array', {
    flatMap: function flatMap(callbackfn /* , thisArg */) {
      var O = toObject(this);
      var sourceLen, A;
      aFunction(callbackfn);
      sourceLen = toLength(O.length);
      A = arraySpeciesCreate(O, 0);
      flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments[1]);
      return A;
    }
  });
  
  require('./_add-to-unscopables')('flatMap');
  