how to add items to var #<Object> in React

Question

I have the next var in the render method, but I want to add more items in the div id='test'

export default class Home extends React.Component {
    render() {
        let view = <div id='test' className='container is-fluid'>
            <div class="tile is-parent">
                <article class="tile is-child box">
                    <p class="title">Hello World</p>
                    <p class="subtitle">What is up?</p>
                </article>
            </div>
        </div>
        return (
            {var}
        )
    }

and I want something like

view.appendChild(
<div class="tile is-parent">
    <article class="tile is-child box">
        <p class="title">Hello World</p>
            <p class="subtitle">What is up?</p>
    </article>
</div>
)