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22 lines
695 B
22 lines
695 B
'use strict';
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var ArraySpeciesCreate = require('es-abstract/2019/ArraySpeciesCreate');
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var FlattenIntoArray = require('es-abstract/2019/FlattenIntoArray');
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var Get = require('es-abstract/2019/Get');
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var ToInteger = require('es-abstract/2019/ToInteger');
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var ToLength = require('es-abstract/2019/ToLength');
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var ToObject = require('es-abstract/2019/ToObject');
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module.exports = function flat() {
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var O = ToObject(this);
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var sourceLen = ToLength(Get(O, 'length'));
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var depthNum = 1;
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if (arguments.length > 0 && typeof arguments[0] !== 'undefined') {
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depthNum = ToInteger(arguments[0]);
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}
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var A = ArraySpeciesCreate(O, 0);
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FlattenIntoArray(A, O, sourceLen, 0, depthNum);
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return A;
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};
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