React DropDown component

React-DropDown.js

/**
 * React dropdown component
 * Usage: <DropDown selected={selectedValue} items={keyValueObject} onChange={this.externalDropdownOnChangeMethod} />
 * 
 * //For example: 
 * var keyValueObject = {0 =>'Value 0', 1 => 'Value 1'};
 * 
 * //External on dropdown change method
 * externalDropdownOnChangeMethod(e){
 *    var value = e.target.value; 
 * }
 */
var DropDown = React.createClass({
    getInitialState(){
        return {};
    },
    getDefaultProps(){
        return {};
    },
    render(){
        var selValue = this.props.selected;
        var items = this.props.items;
        if(typeof items === 'object'){
           items = Object.keys(items).map(
               function (key) {
                   return items[key];
               });
        }
        return (
            <select value={selValue} onChange={this.props.onChange}>
                {items.map(this.displayItem)}
            </select>
        );
    },
    displayItem(item, index){
        return (
            <option key={index} value={item['value']}>{item['name']}</option>
        );
    }
});

export default DropDown;