Rewriting Project

1 files changed, 28 insertions, 0 deletions

diff --git a/node_modules/core-js/internals/array-last-index-of.js b/node_modules/core-js/internals/array-last-index-of.js
new file mode 100644
index 0000000..8d1c93c
--- /dev/null
+++ b/node_modules/core-js/internals/array-last-index-of.js
@@ -0,0 +1,28 @@
+'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 arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');
+
+var min = Math.min;
+var nativeLastIndexOf = [].lastIndexOf;
+var NEGATIVE_ZERO = !!nativeLastIndexOf && 1 / [1].lastIndexOf(1, -0) < 0;
+var STRICT_METHOD = arrayMethodIsStrict('lastIndexOf');
+// For preventing possible almost infinite loop in non-standard implementations, test the forward version of the method
+var USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });
+var FORCED = NEGATIVE_ZERO || !STRICT_METHOD || !USES_TO_LENGTH;
+
+// `Array.prototype.lastIndexOf` method implementation
+// https://tc39.github.io/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;