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more typos in guides
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@ -768,7 +768,7 @@ end
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```
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Now that you have a `Template` class, it's time to associate it with an
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extenstion for template files:
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extension for template files:
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```ruby
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Sprockets.register_engine '.bang', BangBang::Template
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@ -423,7 +423,7 @@ Whenever Rails sees that the internal value of an option being generated matches
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TIP: The second argument to `options_for_select` must be exactly equal to the desired internal value. In particular if the value is the integer 2 you cannot pass "2" to `options_for_select` — you must pass 2. Be aware of values extracted from the `params` hash as they are all strings.
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WARNING: when `:include_blank` or `:prompt` are not present, `:include_blank` is forced true if the select attribute `required` is true, display `size` is one and `multiple` is not true.
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WARNING: when `:include_blank` or `:prompt:` are not present, `:include_blank` is forced true if the select attribute `required` is true, display `size` is one and `multiple` is not true.
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You can add arbitrary attributes to the options using hashes:
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