createElement: (type, props, children) => {
    let el = document.createElement(type),
        key;

    for (key in props) {
        if (props.hasOwnProperty(key)) {
            if (helpers.shouldAssignVal(key)) {
                el[key] = props[key];
            } else {
                let attr = helpers.camelCaseToDash(key),
                    i = 0;

                if (helpers.isArray(props[key])) {
                    for (i; i < props[key].length; i++) {
                        el.setAttribute(attr, props[key][i]);
                    }
                } else {
                    el.setAttribute(attr, props[key]);
                }
            }
        }
    }

    if (typeof children !== 'undefined') {
        if (helpers.isArray(children)) {
            for (let y = 0; y < children.length; y++) {
                if (children[y].nodeType) {
                    el.appendChild(children[y]);
                }
            }
        } else {
            el.appendChild(children);
        }
    }

    return el;
}

let h1 = helpers.createElement('h1', {
    class: 'title',
    id:'title,
    innerText: 'This is a title' // This part will NOT set an attribute, but will set the value of the innerText property of this node.
});

<h1 class="title" id="title">This is a title</h1>

shouldAssignVal: key => {
    return key === 'value' || key === 'innerText' || key === 'innerHtml';
}