text: 'use strict';
  
  exports.highest = function (arr) {
    if (!arr || !Array.isArray(arr) || arr.length < 2) return null;
    for (let i in arr) if (typeof arr[i] !== 'number') return null;
    let max = 0, maxTwo = 0;
    max = Math.max.apply(null, arr);
    arr.splice(arr.indexOf(max), 1);
    maxTwo = Math.max.apply(null, arr);
    return {max: max, maxTwo: maxTwo};
  };