function isBest(value) {
    if (value > _personalBest) {
      _personalBest = value;
      return true;
    }
    return false;
  }
/**
   * Check if value is personal best, stores if true
   * @param {number} value
   * @return boolean
   */
Check if value is personal best, stores if true
@param {number} value
@return boolean
Check if value is personal best stores if true @param { number } value @return boolean
function isBest(value) {
    if (value > _personalBest) {
      _personalBest = value;
      return true;
    }
    return false;
  }
function isBest ( value ) { if ( value > _personalBest ) { _personalBest = value ; return true ; } return false ; }
Check if value is personal best, stores if true
 @param {number} value
 @return boolean
Check if value is personal best stores if true @param { number } value @return boolean