Edit File: es7.array.flatten.js
'use strict'; // https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatten var $export = require('./_export'); var flattenIntoArray = require('./_flatten-into-array'); var toObject = require('./_to-object'); var toLength = require('./_to-length'); var toInteger = require('./_to-integer'); var arraySpeciesCreate = require('./_array-species-create'); $export($export.P, 'Array', { flatten: function flatten(/* depthArg = 1 */) { var depthArg = arguments[0]; var O = toObject(this); var sourceLen = toLength(O.length); var A = arraySpeciesCreate(O, 0); flattenIntoArray(A, O, O, sourceLen, 0, depthArg === undefined ? 1 : toInteger(depthArg)); return A; } }); require('./_add-to-unscopables')('flatten');
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