#Spring in Action chapter 3

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median fernBOT
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<@&1004656351647117403> please have a look, thanks.

weary flame
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the helper method was changed to accept Iterable<Ingredient> instead of List<Ingredient> because in chap 3 the data source is no longer a hardcoded list. using Iterable makes the method more flexible it can handle lists, sets, or any other iterable collection.

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so basically the method in chap 3 is more flexible for any iterable collection. the version in chap 2 can only handle list types