Home > @vsf-enterprise/bigcommerce-theme > UseGuestWishlistInterface > isInWishlist
# UseGuestWishlistInterface.isInWishlist() method
Checks whether a product is in the guest wishlist.
Signature:
isInWishlist(product: Product): boolean;
# Parameters
| Parameter | Type | Description |
|---|---|---|
| product | Product |
Returns:
boolean