dom-usage.js

// Usage
const container = div({
  id: 'foo',
  style: {
    background: 'black',
    width: '100px',
    height: '100px'
  }
});

dom.js

function setDOMProps(node, props) {
  Object.keys(props).forEach((prop) => {
    if (typeof props[prop] === 'object') {
      Object.keys(props[prop])
        .forEach((k) => node[prop][k] = props[prop][k]);
    } else {
      node[prop] = props[prop];
    }
  });
  
  return node;
}

const div = (props) => setDOMProps(document.createElement('div'), props);