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<div class="apiDetail">
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<h2><span>Boolean</span><span class="path">treeNode.</span>isFirstNode</h2>
<h3>Overview<span class="h3_info">[ depends on <span class="highlight_green">jquery.ztree.core</span> js ]</span></h3>
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<p></p>
<div class="longdesc">
<p>Judge whether the node is the sibling nodes's first node.</p>
<p class="highlight_red">If you use the 'exhide' pack, so this attribute will only support the node which be shown. </p>
<p class="highlight_red">Do not initialize or modify it, it is created by the zTree.</p>
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<h3>Boolean Format</h3>
<div class="desc">
<p> true means: the node is first node.</p>
<p> false means: the node is not first node.</p>
<p class="highlight_red">If the node has been hidden, isFirstNode = false</p>
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<h3>Examples of treeNode</h3>
<h4>1. Judge whether the first selected node is the sibling nodes's first node.</h4>
<pre xmlns=""><code>var treeObj = $.fn.zTree.getZTreeObj("tree");
var sNodes = treeObj.getSelectedNodes();
if (sNodes.length > 0) {
var isFirstNode = sNodes[0].isFirstNode;
}
</code></pre>
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