TemplateEngine.js

var TemplateEngine = function() {
    this.compile = function(template) {
        return {
            render: function(scope) {
                var rendered = template;
                for(var key in scope) {
                    rendered = rendered.replace(new RegExp('\{\{' + key + '\}\}', 'g'), scope[key]);
                }
                return rendered;
            }
        };
    };
};