ReactJs Select add default value
<p>I want to store select default value if user not touch it in ReactJs. How is that possible?</p>

<pre><code>&lt;select onChange={this.valSelected.bind(this)}&gt;
    {currencies.map(function(name, index){
        return &lt;option value={name}&gt;{name}&lt;/option&gt;;
    })}
&lt;/select&gt;
</code></pre>

<p>and </p>

<pre><code>valSelected(event){
    this.setState({
        valSelected: event.target.value
    });
}
</code></pre>