How to add Blog "category.slug" to "activeMenuItem"?

function onInit() {$this['activeMenuItem'] = ???;}

Show category.slug in post:

{% for category in post.categories %} {{ category.slug }} {% endfor %}

or

{{ post.categories[0].slug }}

Hey, try this:

function onInit() {
    $this['activeMenuItem'] = $this->post->categories[0]->slug ?? null;
}

daftspunk said:

Hey, try this:

function onInit() {
   $this['activeMenuItem'] = $this->post->categories[0]->slug ?? null;
}

Works with function onEnd()

And can be removed ?? null

Thank you very much!!!

Great! ?? null is for exception handling in case the post has no categories.