engagementgamelab/CivicSeed

if (!Number.isInteger) {
  Number.isInteger = function isInteger(nVal) {
    return typeof nVal === 'number'
      && isFinite(nVal)
      && nVal > -9007199254740992
      && nVal < 9007199254740992
      && Math.floor(nVal) === nVal;
  };
}