JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdn.ractivejs.org/edge/ractive.js"></script>
<main></main>

<script id='template' type='text/ractive'>
    <ul>
        {{#each:numbers.slice().sort(ascending)}}
        <li>{{it}}<li>
        {{/each}}
    </ul>
    <p>ascending: {{ numbers.slice().sort(ascending) }}</p>
    <p>descending: {{ numbers.slice().sort(descending) }}</p>
</script>

CSS

body {
    font-family: 'Helvetica Neue', arial, sans-serif;
    font-weight: 200;
    color: #353535;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 200;
}

JavaScript

var helpers = Ractive.defaults.data;

// assuming a and b are numbers...
helpers.ascending = function ( a, b ) {
    return a - b;
};

helpers.descending = function ( a, b ) {
    return b - a;
};

ractive = new Ractive({
    el: 'body',
    template: '#template',
    data: {
        numbers: [ 9, 4, 6, 2, 4, 1, 10, 2, 7, 8 ]
    }
});