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- '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');
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