/node-pubsub

pubsub

Experimental and probably redundant node pubsub. Question: Why does node-pubsub (https://github.com/swallentin/node-pubsub) not use event emitter? Seems simpler...

Usage

var topic = require("./pubsub");

topic.sub("topicname", function(one, two, three, four)
{
  console.log("topicname executed with ", arguments, "or ", one, two, three, four);
});
var anotherHandler = topic.sub("topicname", function()
{
  console.log("another topicname callback which should not execute.");
});
topic.unsub(anotherHandler);

topic.pub("topicname", "one", "two", "three", "<-- these are args");

Produces output:

topicname executed with  { '0': 'one',
  '1': 'two',
  '2': 'three',
  '3': '<-- these are args' } or  one two three <-- these are args

There's a subonce method which will behave like a sub method but will only execute the callback once.

topic.subonce("topicname", function()
{
    console.log("I am here one time only!");
});