Gtk.Label.prototype.set_justify

function set_justify(jtype:Gtk.Justification):void {
    // Gjs wrapper for gtk_label_set_justify()
}

Sets the alignment of the lines in the text of the label relative to each other. Gtk.Justification.left is the default value when the widget is first created with Gtk.new. If you instead want to set the alignment of the label as a whole, use Gtk.set_alignment instead. Gtk.Label.prototype.set_justify has no effect on labels containing only a single line.