a function that uses a PubNub client to send a message into a PubNub channel.

PubNub-sendMessage+snippet.js

function publishMessage(message, callback) {
    var msgConfig = {
        channel : channelName,
        sendByPost: true,
        message: { 
            uuid: UID,
            title: "text",
            description: message
        }
    }
    pubNub.publish(msgConfig, function(status, response) {
        console.log(status, response);
        if (callback != undefined && callback instanceof Function) {
            callback();
        }
    })
}