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---
title: getState
name: functions-getstate
---
Get the state of tree: which nodes are open and which one is selected?
Returns a javascript object that contains the ids of open nodes and selected nodes:
{% highlight js %}
{
open_nodes: [1, 2, 3],
selected_node: [4, 5, 6]
}
{% endhighlight %}
If you want to use this function, then your tree data should include an **id** property for each node.
You can use this function in combination with [setState](#functions-setstate) to save and restore the tree state.
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