var jazz = require("jazz");
var sys = require("sys");
var template = jazz.compile("my template source code {someVariable}");
template.eval({"someVariable": "lolmuffin"}, function(data) { sys.puts(data); });

my template source code lolmuffin

{someVariable}

{users.fred}
{"hello"}
{45}
{a eq b}

{someFilter(arg1, arg2)}

{math.sin(45)}

// sum.jazz
{sum(5, 10)}
// sum.js
var jazz = require("jazz");
var params = {
    sum: function(arg1, arg2, cb) {
        setTimeout(function() {
            cb((arg1 + arg2).toString());
        }, 2000);
    }
}
jazz.compile("sum.jazz").eval(params, function(output) { console.log(output); });

{if name}
    Hello, {name}
{end}

{if name}
    Hello, {name}
{else}
    Hello, Captain Anonymous
{end}

{if firstName}
    Hello, {firstName}
{elif lastName}
    Hello, Mr. {lastName}
{else}
    Hello, Captain Anonymous
{end}

{if user.lastName and user.isVip}
    Hello, Mr. {user.lastName}, my good man!
{end}
{if fred.tired or fred.bored}
    Fred: "Yawn!"
{end}
{if not awake}
    Zzz
{end}

{if config.feature eq "enabled"}
    Feature is enabled!
{end}
{if status neq "inactive"}
    Huzzah!
{end}

{if (a and b) or c}
    ...
{end}

{foreach item in someArray}
    <p>{item}</p>
{end}

{foreach pair in someObject}
    <p>{pair.key} = {pair.value}</p>
{end}

{if @blah('a')}
    <p>There were so many blahs in a</p>
{end}

{foreach pair in someObject}
    <p>Loop number (1 based): {__count}</p>
    <p>Index (0 based): {__index}</p>
    <p>{pair.key} = {pair.value}</p>
{end}

    <p>{object['array'][0].cheese}</p>