asd.js

const heroLevelArr = [
  2,
  4,
  6,
  8,
  11,
  14,
  17,
  20,
  24,
  28,
  32,
  36,
  41,
  46,
  51,
  56,
  62,
  69,
  76,
  83,
  90,
];

export const getHeroLevel = (exp = 0) => {

  let level = 1;

  if (!parseInt(exp) || isNaN(parseInt(exp))) {
    return level;
  }
  

  heroLevelArr.forEach((threshold, index) => {

    if (exp >= threshold) {
      level = index + 1;
    }

  });

  return level;
};