code: func (j *Json) MustArray(args ...[]interface{}) []interface{} {
  	var def []interface{}
  
  	switch len(args) {
  	case 0:
  	case 1:
  		def = args[0]
  	default:
  		log.Panicf("MustArray() received too many arguments %d", len(args))
  	}
  
  	a, err := j.Array()
  	if err == nil {
  		return a
  	}
  
  	return def
  }
docs: // MustArray guarantees the return of a `[]interface{}` (with optional default)
  //
  // useful when you want to iterate over array values in a succinct manner:
  //		for i, v := range js.Get("results").MustArray() {
  //			fmt.Println(i, v)
  //		}