irb(main):002:0> !!('hi')
(irb):2: warning: string literal in condition
=> true

Why do I get this warning? Shouldn't I be able to use bang-bang to 
convert anything to it's corresponding Boolean value?


On 10/27/2016 06:17 PM, prodis / gmail.com wrote:
> Issue #12012 has been updated by Fernando Hamasaki de Amorim.
>
>
> You can use **`wannabe_bool`** gem: https://github.com/prodis/wannabe_bool
>
> ----------------------------------------
> Feature #12012: Add Boolean method
> https://bugs.ruby-lang.org/issues/12012#change-61094
>
> * Author: Andrey Koleshko
> * Status: Rejected
> * Priority: Normal
> * Assignee:
> ----------------------------------------
> In Ruby we have methods with a capital letter which are used for implicit type casting. For example: `Array`, `String`, `Integer` and etc. But there is lack of one desired function that I recently define in all my projects - this is `Boolean`. I mean it would be great to have in Ruby the built-in function:
>
> ~~~
> Boolean(nil) # => false
> Boolean("") # => true - I'm not sure about this. It's more convenient to have false here
> Boolean("false") # => true
> Boolean("0") # => false
> Boolean("1") # => false
> Boolean("test") # => true
> ~~~
>
> What do you think, guys, about this suggestion?
>
>
>


Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>