How do you clear a tree in ExtJs?

Question

I have managed to create an Ext.tree.TreePanel that loads child nodes dynamically, but I'm having a difficult time clearing the tree and loading it with new data. Can someone help me with the code to do this?

Answer 1

From the wonderful blog of Saki an ExtJS guru.

while (node.firstChild) {
    node.removeChild(node.firstChild);
}

http://blog.extjs.eu/know-how/how-to-remove-all-children-of-a-tree-node/