IBM/Lotus Domino SSJS for returning results as a Vector. Handy when expecting multiple values from a document field, when single (string object) is potentially returned.

Utils.jss

/**
   * @author Eric McCormick
   * src: https://edm00se.io/xpages/consistent-multivalue-formatting/
   * @param java.util.Object to examine
   * @return java.util.Vector of values from originating Object
   **/
var util = {
  asVec: function(obj){
    switch(typeof obj){
      case "java.util.Vector": //it's already a Vector, just return it
        return obj;
        break;
      case "java.util.ArrayList": //it's an ArrayList, return it as a Vector
      case "Array": //it's an Array prototype, return it as a Vector
        var x:java.util.Vector = new java.util.Vector();
        var s = obj.size()||obj.length;
        for(var i=0; i<s; i++){
          x.add(obj[i]);
        }
        return x;
        break;
      case "java.lang.String":
      default: //it's most likely a String, return it as a Vector
        var x:java.util.Vector = new java.util.Vector();
        x.add(obj);
        return x;
        break;
    }
  }
};

Converted to SSJS util function library. Invoked as util.asVec(java.util.Object:object).