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node_modules/core-js/internals/array-last-index-of.js

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+'use strict';
+/* eslint-disable es/no-array-prototype-lastindexof -- safe */
+var apply = require('../internals/function-apply');
+var toIndexedObject = require('../internals/to-indexed-object');
+var toIntegerOrInfinity = require('../internals/to-integer-or-infinity');
+var lengthOfArrayLike = require('../internals/length-of-array-like');
+var arrayMethodIsStrict = require('../internals/array-method-is-strict');
+
+var min = Math.min;
+var $lastIndexOf = [].lastIndexOf;
+var NEGATIVE_ZERO = !!$lastIndexOf && 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 apply($lastIndexOf, this, arguments) || 0;
+  var O = toIndexedObject(this);
+  var length = lengthOfArrayLike(O);
+  var index = length - 1;
+  if (arguments.length > 1) index = min(index, toIntegerOrInfinity(arguments[1]));
+  if (index < 0) index = length + index;
+  for (;index >= 0; index--) if (index in O && O[index] === searchElement) return index || 0;
+  return -1;
+} : $lastIndexOf;