Javascript - child node count

Question

    
Array1
    
Array2
    
Array3



        

Answer 1

If you want to get a list of all nested DOM nodes, you can use this code snippet:

function getNestedElements(node) {
  const elems = [];
  const children = node.childNodes;

  for (let i = 0; i < children.length; i++) {
    if (children[i].nodeType === document.ELEMENT_NODE) {
      elems.push(children[i], ...getNestedElements(children[i]));
    }
  }
  return elems;
}

This is a modified version of @julien-ch answer