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Update guide for the counter variable when rendering with the `as:` option 

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Lucas Oliveira 2018-10-16 20:52:34 -04:00
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guides/source/layouts_and_rendering.md
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@ -1266,7 +1266,7 @@ You can also pass in arbitrary local variables to any partial you are rendering
In this case, the partial will have access to a local variable `title` with the value "Products Page".
TIP: Rails also makes a counter variable available within a partial called by the collection, named after the title of the partial followed by `_counter`. For example, when rendering a collection `@products` the partial `_product.html.erb` can access the variable `product_counter` which indexes the number of times it has been rendered within the enclosing view.
TIP: Rails also makes a counter variable available within a partial called by the collection, named after the title of the partial followed by `_counter`. For example, when rendering a collection `@products` the partial `_product.html.erb` can access the variable `product_counter` which indexes the number of times it has been rendered within the enclosing view. Note that it also applies for when the partial name was changed by using the `as:` option. For example, the counter variable for the code above would be `item_counter`.
You can also specify a second partial to be rendered between instances of the main partial by using the `:spacer_template` option: