Vuejs append data-attribute conditionally
Use : before that and I would create a computed property like this.
computed: { parentId() { if (this.model.parent_id !== null) return this.model.parent_id return 0; }}<ul :data-parent="parentId"></ul>
The right Syntax
<ul :data-parent="{{(model.parent_id !== null) ? model.parent_id : 0}}"></ul>