array-includes-polyfill/dist/polyfills/includes.js

Exposing a richer set of Array features for JavaScript

"use strict";

var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Includes = (function () {
  function Includes() {
    _classCallCheck(this, Includes);
  }

  _createClass(Includes, [{
    key: "includes",
    value: function includes(searchElement /*, fromIndex*/) {
      var O = Object(this);
      var len = parseInt(O.length) || 0;
      if (len === 0) {
        return false;
      }
      var n = parseInt(arguments[1]) || 0;
      var k;
      if (n >= 0) {
        k = n;
      } else {
        k = len + n;
        if (k < 0) {
          k = 0;
        }
      }
      var currentElement;
      while (k < len) {
        currentElement = O[k];
        if (searchElement === currentElement || searchElement !== searchElement && currentElement !== currentElement) {
          return true;
        }
        k++;
      }
      return false;
    }
  }]);

  return Includes;
})();

module.exports = Includes;