How do I open all nodes in jquery Jstree?

Question

I am using the following code:

$("#treeview").jstree();
$("#treeview").jstree(\'open_all\');

With the following html:

Answer 1

all the answers above not work in my workspace. I searched again and find this link(Why doesn't jsTree open_all() work for me?) is helpful, and post my answer:

jstree version: 3.0.0-bata10

$(document).ready(function() {
  $("#tree").bind("loaded.jstree", function(event, data) { 
    data.instance.open_all();
  });
  $("#tree").jstree();
})