From: hanmac@...
Date: 2017-04-03T14:19:57+00:00
Subject: [ruby-core:80546] [Ruby trunk Feature#13395] Add a method to check	for not nil

Issue #13395 has been updated by Hanmac (Hans Mackowiak).


nobu (Nobuyoshi Nakada) wrote:
> Hanmac (Hans Mackowiak) wrote:
> > ~~~ ruby
> > array.count(&:itself)
> > ~~~
> > does work for something **similar** like that.
> 
> IIRC, it equals to simple `array.count`.

are you sure? i am currently on ruby 2.3.3 Windows

~~~ ruby
[1, "bc", nil].count #=> 3
[1, "bc", nil].count(&:itself) #=> 2
~~~


----------------------------------------
Feature #13395: Add a method to check for not nil
https://bugs.ruby-lang.org/issues/13395#change-64046

* Author: JustJosh (Joshua Stowers)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
----------------------------------------
There does not seem to be a method in Ruby to check if an object is *not* nil.
Such a method could help with readability.

Example:
> ~~~ ruby
> array = [1, 'dog', nil]
> array.count(&:not_nil?)
> ~~~

> vs

> ~~~ ruby
> array = [1, 'dog', nil]
> array.reject(&:nil?).count
> ~~~





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