## Boolean treeNode.isHidden

### Overview[ depends on jquery.ztree.exhide js ]

Judge whether the node has been hidden.

1. When initialize zTree, the nodes which be set 'isHidden = true' will be hidden.

2. Please don't change this attribute of the nodes which have been created. If you want to hide or show nodes, please use 'hideNode() / hideNodes() / showNode() / showNodes()' methods.

### Boolean Format

true means: this node is hidden.

false means: this node is shown.

### Examples of treeNode

#### 1. Judge whether the first root node has been hidden.

    var treeObj = $.fn.zTree.getZTreeObj("tree");
    var sNodes = treeObj.getNodes();
    if (sNodes.length > 0) {
    	var isHidden = sNodes[0].isHidden;
    }