class FeactDOMComponent {
    constructor(element) {
        this._currentElement = element;
    }

    mountComponent(container) {
        const domElement = document.createElement(this._currentElement.type);
        const textNode = document.createTextNode(this._currentElement.props.children);
     
        domElement.appendChild(textNode);
        container.appendChild(domElement);
        
        this._hostNode = domElement;
        return domElement;
    }
}

const Feact = {
		createElement(type, props, children) {
        const element = {
            type,
            props: props || {}
        };

        if (children) {
            element.props.children = children;
        }

        return element;
    },
    
    render(element, container) {
        const componentInstance = new FeactDOMComponent(element);
        return componentInstance.mountComponent(container);
    }
};

Feact.render(
		Feact.createElement('h1', null, 'hello Feact!'),
    document.getElementById('root')
);