1'use strict';
2// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatMap
3var $export = require('./_export');
4var flattenIntoArray = require('./_flatten-into-array');
5var toObject = require('./_to-object');
6var toLength = require('./_to-length');
7var aFunction = require('./_a-function');
8var arraySpeciesCreate = require('./_array-species-create');
9
10$export($export.P, 'Array', {
11  flatMap: function flatMap(callbackfn /* , thisArg */) {
12    var O = toObject(this);
13    var sourceLen, A;
14    aFunction(callbackfn);
15    sourceLen = toLength(O.length);
16    A = arraySpeciesCreate(O, 0);
17    flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments[1]);
18    return A;
19  }
20});
21
22require('./_add-to-unscopables')('flatMap');
23