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