--- /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;
+ }
+});