JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://github.com/janl/mustache.js/raw/master/mustache.js"></script>
<div id="container"></div>

JavaScript

$(function() {
    var obj = {
        x: 123,
        points: [
            { name: "foo", y: 1.234567 },
            { name: "bar", y: 2.123456 },
            { name: "fax", y: 3.623415 }
        ],
        toFixed: function() {
            return function(num, render) {
                return parseFloat(render(num)).toFixed(2);
            }
        }
    };
    
    var template = "{{x}}{{#points}}<br/>{{name}}, {{#toFixed}}{{y}}{{/toFixed}}{{/points}}";
    
    $('#container').html(Mustache.render(template, obj));
});