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by rbanffy 5980 days ago
> Oh, come on. You're just disagreeing for effect here.

It's unclear what "get" is. Is it a function? What does it return? My guess would be that it returns a function bound to the handler of a "/hi" url, but that's a guess.
1 comments
steveklabnik 5980 days ago
"get" is a function that takes a string and a block.

And the block is bound to the uri given in the string, so your guess is correct.

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rbanffy 5980 days ago
Ruby always confuses me with this flexible syntax...
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steveklabnik 5980 days ago
It's possible that you just haven't read enough ruby, then. There are only two variations on the syntax of passing a block to a function, "do/end" and "{ }". By convention, multiline blocks use do/end, and single line blocks use {}.

It's also possible that one of the things in the article is the gotcha, flexible parenthesis. By convention, Rubyists tend to use parenthesis when defining functions, but not when calling them:

    def get(path, opts={}, &block)

    get "/hello" do
not

    get("hello") do
Which would still work, if you preferred. The exception to this is chaining method calls:

    Users.find_all_by_age(23).select {|user| user.first_name == "steve" }
... not that that's an awesome use of ActiveRecord, but whatever.
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