Unofficial JDA (Javascript Dataflow Architecture) Wiki

This blueprint joins two strings and then posts the result. Actually it does more than that, since it only posts results when both strings have been send to it, so it kind of synchronizes things, right?

BLUEPRINT(
"~010B8CDB6C59CC4c5bB0A2ED265294659E", 
[
 ["string1_in", "onString1", 1],
 ["string2_in", "onString2", 1]
],
[
 "joined_string_out"
],
function (Class) 
{
    Class.prototype._onInit = function(props)
    {
      this._delim = props["delimiter"] || ",";
      this._string1;
      this._string2;
    };

    Class.prototype.onString1 = function(msg)
    {
      if (this._string2 === undefined) {
    this._string1 = msg;
      } else {
    this.postMessage("joined_string_out", 
             msg + this._delim + this._string2);
      }
    };

    Class.prototype.onString2 = function(msg)
    {
      if (this._string1 === undefined) {
    this._string2 = msg;
      } else {
    this.postMessage("joined_string_out", 
             this._string1 + this._delim + msg);
      }
    };

}, "Two String Joiner");