Liquid, where filter with contains operator

Technical Q&A
1

We can use this one.

{% for product in collection.products | where "vendor", "my_vendor" %}

I would like to filter products by their tags. but as you know, product has multiple tags.

Then how do I filter collection’s products by specific filter?

for example, I have product A, B and product A has tags as “Tag1, Tag2”, also product B has “Tag2, Tag3”.

I would like to show the products of collection, that has only Tag3, which means I would like to show only product B.

I can create the collection by product tags.
But it’s better to use the filter for our business logic.

Please help me out!

Thanks

2

It won’t work with tag, but shopify has updated filter, you can learn about it, it will work much better.
Refer https://shopify.dev/themes/navigation-search/filtering
Code: https://github.com/Shopify/dawn/blob/main/sections/main-collection-product-grid.liquid
Hope it helps!