--- /dev/null
+'use strict';
+var toIndexedObject = require('../internals/to-indexed-object');
+var toInteger = require('../internals/to-integer');
+var toLength = require('../internals/to-length');
+var arrayMethodIsStrict = require('../internals/array-method-is-strict');
+
+var min = Math.min;
+var nativeLastIndexOf = [].lastIndexOf;
+var NEGATIVE_ZERO = !!nativeLastIndexOf && 1 / [1].lastIndexOf(1, -0) < 0;
+var STRICT_METHOD = arrayMethodIsStrict('lastIndexOf');
+var FORCED = NEGATIVE_ZERO || !STRICT_METHOD;
+
+// `Array.prototype.lastIndexOf` method implementation
+// https://tc39.es/ecma262/#sec-array.prototype.lastindexof
+module.exports = FORCED ? function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {
+ // convert -0 to +0
+ if (NEGATIVE_ZERO) return nativeLastIndexOf.apply(this, arguments) || 0;
+ var O = toIndexedObject(this);
+ var length = toLength(O.length);
+ var index = length - 1;
+ if (arguments.length > 1) index = min(index, toInteger(arguments[1]));
+ if (index < 0) index = length + index;
+ for (;index >= 0; index--) if (index in O && O[index] === searchElement) return index || 0;
+ return -1;
+} : nativeLastIndexOf;