How to get all Google Chrome bookmarks in background.js?

Question

JavaScript

You need to get the entire bookmark tree from Google Chrome. In the background.js file, when the menu item is clicked, I try to display this tree, but nothing comes out. Who faced? Help.
Now I do this:

function normalizeChromiumTime(t) {
    return ((t - 11644473600000000) / 1000000);
}

function recursiveJSON2ARRAY(obj, parent){
  $.each(obj, function(i, v){
    if(v.children && 'object' === typeof v.children && Object.keys(v.children).length){
      var parentname = v.name;
      $.each(v.children, function(i, child){
        if(child.url){
          var date_added = normalizeChromiumTime(child.date_added);
          marks.data.push({
            parentname: parent+'->'+parentname, 
            date: date_added, 
            name: child.name, 
            url: child.url
          });
        }
        else{
          recursiveJSON2ARRAY(v.children, parent+"->"+parentname);
        }
      });
    }
    else{
      if(v.url){
        var date_added = normalizeChromiumTime(v.date_added);
        marks.data.push({
          parentname: parent, 
          date: date_added,  
          name: v.name, 
          url: v.url
        });
      }
    }
  });
}

function getAllBookmarks(tree){
  // запускаем парсер закладок
  $.each(tree, function(i, childrenElement){
    if(childrenElement.children && 'object' === typeof childrenElement.children){
      recursiveJSON2ARRAY(childrenElement.children, childrenElement.name);
    }
  });
  alert(JSON.stringify(marks.data));
}


chrome.bookmarks.getTree(getAllBookmarks);

Answer 1

Just like that, everyone rushed to help)))
Okay, he himself decided through crutches as usual. Solution here: freelanceronline.ru/categories/javascript/kak-udal...