mirror of
https://github.com/musix-org/musix-oss
synced 2024-12-23 16:13:18 +00:00
22 lines
803 B
JavaScript
22 lines
803 B
JavaScript
'use strict';
|
|
var $ = require('../internals/export');
|
|
var flattenIntoArray = require('../internals/flatten-into-array');
|
|
var toObject = require('../internals/to-object');
|
|
var toLength = require('../internals/to-length');
|
|
var aFunction = require('../internals/a-function');
|
|
var arraySpeciesCreate = require('../internals/array-species-create');
|
|
|
|
// `Array.prototype.flatMap` method
|
|
// https://github.com/tc39/proposal-flatMap
|
|
$({ target: 'Array', proto: true }, {
|
|
flatMap: function flatMap(callbackfn /* , thisArg */) {
|
|
var O = toObject(this);
|
|
var sourceLen = toLength(O.length);
|
|
var A;
|
|
aFunction(callbackfn);
|
|
A = arraySpeciesCreate(O, 0);
|
|
A.length = flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
|
|
return A;
|
|
}
|
|
});
|