How to Add Dashicon to Admin Bar Menu Item Title
For doing this you need additional to dashicons
class add ab-icon
class to HTML element specified in title
attribute. Let's look at such example:
add_action( 'admin_bar_menu', 'add_toolbar_link', 70 ); function add_toolbar_link( $wp_admin_bar ){ $wp_admin_bar->add_menu( [ 'id' => 'chartlink', 'title' => '<span class="ab-icon dashicons-visibility"></span><span class="ab-label">Views</span>', 'href' => '#', ] ); }
As a result, we will get:
Dashicons can be found here: https://developer.wordpress.org/resource/dashicons/
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This Note embeded into: 11 Hacks for the WordPress Admin Bar (Toolbar)