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node_modules/core-js/internals/array-includes.js

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+'use strict';
+var toIndexedObject = require('../internals/to-indexed-object');
+var toAbsoluteIndex = require('../internals/to-absolute-index');
+var lengthOfArrayLike = require('../internals/length-of-array-like');
+
+// `Array.prototype.{ indexOf, includes }` methods implementation
+var createMethod = function (IS_INCLUDES) {
+  return function ($this, el, fromIndex) {
+    var O = toIndexedObject($this);
+    var length = lengthOfArrayLike(O);
+    var index = toAbsoluteIndex(fromIndex, length);
+    var value;
+    // Array#includes uses SameValueZero equality algorithm
+    // eslint-disable-next-line no-self-compare -- NaN check
+    if (IS_INCLUDES && el != el) while (length > index) {
+      value = O[index++];
+      // eslint-disable-next-line no-self-compare -- NaN check
+      if (value != value) return true;
+    // Array#indexOf ignores holes, Array#includes - not
+    } else for (;length > index; index++) {
+      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
+    } return !IS_INCLUDES && -1;
+  };
+};
+
+module.exports = {
+  // `Array.prototype.includes` method
+  // https://tc39.es/ecma262/#sec-array.prototype.includes
+  includes: createMethod(true),
+  // `Array.prototype.indexOf` method
+  // https://tc39.es/ecma262/#sec-array.prototype.indexof
+  indexOf: createMethod(false)
+};