JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdn.jsdelivr.net/select2/3.4.8/select2.min.js"></script>
<link rel="stylesheet" href="//cdn.jsdelivr.net/select2/3.4.8/select2.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/ractive/1.0.0-build-99/ractive.js"></script>
<main></main>

<script id='template' type='text/ractive'>
    <p>selected value: {{selection}}</p>
    
    <select decorator="select2:selection" value="{{selection}}">
        {{#options}}
            <option value="{{.}}">{{.}}</option>
        {{/options}}
    </select>
</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

Ractive.decorators.select2 = function ( node, keypath ) {
    var ractive = this;
    
    $(node).select2().on( 'change', function () {
    		debugger;
        ractive.set( keypath, this.value );
    });
    
    return {
        teardown: function () {
            $(node).select2( 'destroy' );
        }
    };
};

var ractive = new Ractive({
    el: 'main',
    template: '#template',
    data: { options: [ 'a', 'b', 'c', 'd', 'e' ] }
});

ractive.observe('selection', function(){
debugger;
});