How to check if a customer is logged in? 👤
### Explanation
To check if a customer is logged in:
```liquid
{% if customer %}
Welcome back, {{ customer.first_name }}!
{% else %}
Please log in
{% endif %}
```
Key points:
- Simply use `{% if customer %}` to check login status
- `customer` object evaluates to true when logged in, false when not
- `customer` object available globally
- Common customer properties:
- `first_name`
- `last_name`
- `email`
- `orders_count`
- `tags`
- Returns false for guest checkout
Reference: [Shopify Customer Object](https://shopify.dev/docs/api/liquid/objects/customer)
Answer Options:
- {% if customer %}
- {% if customer.exists %}
- {% if customer.has_account %}
- {% if customer.active %}