export-google-docs-outline.js

topD=document.getElementsByClassName('navigation-widget-content')[0];
l=allDescendants(topD, 0);
console.log(l);
copy(l);
console.log("copied to clipboard in markdown format :)");

function allDescendants (node, levels) {
    let arr=[];
    if(node.childNodes)
    for (var i = 0; i < node.childNodes.length; i++) {
      var child = node.childNodes[i];
      for(let x of allDescendants(child, levels + 1)) arr.push(x);
      if((child.className || "").toString().includes('level-')) {
        len=parseInt((child.className || "").toString().split('level-')[1]);
        arr.push(new Array((len) * 4).join(' ') + "* ", child.innerText + '\n');
      }
    }
    return arr.join('');
}