+++ /dev/null
-'use strict';
-var $ = require('../internals/export');
-var isObject = require('../internals/is-object');
-var isArray = require('../internals/is-array');
-var toAbsoluteIndex = require('../internals/to-absolute-index');
-var toLength = require('../internals/to-length');
-var toIndexedObject = require('../internals/to-indexed-object');
-var createProperty = require('../internals/create-property');
-var wellKnownSymbol = require('../internals/well-known-symbol');
-var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
-var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');
-
-var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('slice');
-var USES_TO_LENGTH = arrayMethodUsesToLength('slice', { ACCESSORS: true, 0: 0, 1: 2 });
-
-var SPECIES = wellKnownSymbol('species');
-var nativeSlice = [].slice;
-var max = Math.max;
-
-// `Array.prototype.slice` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.slice
-// fallback for not array-like ES3 strings and DOM objects
-$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
- slice: function slice(start, end) {
- var O = toIndexedObject(this);
- var length = toLength(O.length);
- var k = toAbsoluteIndex(start, length);
- var fin = toAbsoluteIndex(end === undefined ? length : end, length);
- // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
- var Constructor, result, n;
- if (isArray(O)) {
- Constructor = O.constructor;
- // cross-realm fallback
- if (typeof Constructor == 'function' && (Constructor === Array || isArray(Constructor.prototype))) {
- Constructor = undefined;
- } else if (isObject(Constructor)) {
- Constructor = Constructor[SPECIES];
- if (Constructor === null) Constructor = undefined;
- }
- if (Constructor === Array || Constructor === undefined) {
- return nativeSlice.call(O, k, fin);
- }
- }
- result = new (Constructor === undefined ? Array : Constructor)(max(fin - k, 0));
- for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);
- result.length = n;
- return result;
- }
-});