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I have a tree like this:

About Us
 - Alpha
 - Beta
 - Delta
  * Three Sub 1
  * Three Sub 2
Careers
  - Full time

When the current page is 'Beta', since 'Beta' does not have any child entries and is at the second level of navigation, I want to hide my navigation breadcrumbs.

I have the breadcrumbs displaying fine, but how would I use a condition to check that a node is both at a certain level, and also has no children?

1

You can get information about any node via the get_node tag.

From there, you can find out if the node has children, as well as the depth of the current node.

Something like:

{exp:taxonomy:get_node tree_id="1" entry_id="{entry_id}"}
    {if this_node_level > 2 && this_node_has_children}
        {exp:taxonomy:breadcrumbs tree_id="1" entry_id="{entry_id}"}
    {/if}
{/exp:taxonomy:get_node}

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