includes.js

export default function includes(searchElement, searchList, fromIndex) {

  if (searchList == null) {
    throw new TypeError('"searchList" is null or not defined');
  }

  var o = Object(searchList);

  var len = o.length >>> 0;

  if (len === 0) {
    return false;
  }

  var n = fromIndex | 0;

  var k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);

  function sameValueZero(x, y) {
    return (
      x === y ||
      (typeof x === "number" && typeof y === "number" && isNaN(x) && isNaN(y))
    );
  }

  while (k < len) {

    if (sameValueZero(o[k], searchElement)) {
      return true;
    }
    k++;
  }

  return false;
}