function findChildren(el) {
  var result = [];
  var childNodes = el.childNodes;

  for (var i = 0; i < childNodes.length; i++) {
    let node = childNodes[i];

    if (node.nodeType === 1) {
      result.push(node);
    }
  }

  return result;
}
Find direct decendents of an element
@param {element} el
@returns {element[]} children
@memberof Core