Monkey patch multiple channel publishing

pubnub-publish-channels.js

PUBNUB._publish = PUBNUB.publish;
PUBNUB.publish = function(body) {
  var channels = body.channel;
  if (typeof channels === 'string' && (/,/i).test(channels)) {
    this.publish(channels.split(','));
  }
  if (Array.isArray(channels)) {
    this.each(Array.prototype.slice.call(channels, 0), function(channel) {
      body.channel = channel;
      this.publish(body);
    });
  } else {
    this._publish(body);
  }
};