Config Variables and Functions

Maizzle is fully configured in JavaScript, so you can programatically set config options or process and make data available to your Templates.


You can define variables and then use them in the config.

Here's a very basic example:

// config.js

// We define an array of additional paths for PurgeCSS to scan
let extraPurgePaths = [

module.exports = {
  purgeCSS: {
    content: [
      ...extraPurgePaths, // spread the array variable
    // ...


When using a function, you need to make sure that:

  1. it returns something
  2. you invoke it
// config.js
const foo = function() {
  return 'manchu'

module.exports = {
  foo: foo(), // invoke function defined above
  bar: function() {
    // do stuff and return
    return 'baz'
  }(), // invoke function
  wha: () => imaginaryLib.render('implicit return 👌'),

You would access those variables under the page object:

<extends src="src/layouts/base.html">
  <block name="template">
    <p>{{ }}</p>
    <p>{{ }}</p>
    <p>{{ page.wha }}</p>


<p>implicit return 👌</p>