JSFiddle - React, Tailwind, and code Playground

HTML

<main></main>

<script id='template' type='text/ractive'>
    {{#each numbers:index}}
      <Integer value="{{this}}"></Integer>
      <button on-click="splice('numbers', index, 1)">Remove</button>
    {{/each}}
</script>

CSS

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

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

.error {
    color: #d00;
    font-family: monospace;
}

JavaScript

Ractive.components.Integer = Ractive.extend({
    template: '<h2>Integer Value:{{_value}}</h2>',
    computed: {
        _value: {
            get: '${value}',
            set: function(value){
                value = parseInt(value, 10);
                if (isNaN(value)) value = 0
                this.set('value', value);
            }
        } 
    }
})

new Ractive({
    el: 'main',
    template: '#template',
    data: {
        numbers: [ 1, 2, 3 ]
    }
})