Idiomatic Ruby

[Leandro TK]

Hello guys,

As all of you, I think Ruby a beautiful programming language. And I wrote a blog post about that.

I call it Idiomatic Ruby

Any comment or advice will alwasy be welcome :)

[Scott Jacobsen]

Nice post. But you shouldn't use any? to test if a collection is empty. To see why try it on this array: [nil, false] and read the docs. Use empty? to test if an array is empty. 

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[Leandro TK]

Hey Scott,

You're absolutely right. If we want to ask an array if it is empty, we can use the .empty? method. But if we want to ask if the array has anything inside it, we can use .any? method :)

On Saturday, April 1, 2017 at 10:41:01 AM UTC-3, Scott Jacobsen wrote:

Nice post. But you shouldn't use any? to test if a collection is empty. To see why try it on this array: [nil, false] and read the docs. Use empty? to test if an array is empty. 

On Apr 1, 2017 12:02 AM, "Leandro TK" <leandr...@gmail.com> wrote:

Hello guys,

As all of you, I think Ruby a beautiful programming language. And I wrote a blog post about that.

I call it Idiomatic Ruby

Any comment or advice will alwasy be welcome :)

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To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-ta...@googlegroups.com.
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[Scott Jacobsen]

That's not what #any? is for, but it is a common misconception. Try running the code I suggested you run, and read the docs I suggested you read to see why. To be more clear, try running this - `[false].any?` and `[false].empty?` and see if you get what you expect.

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