[ruby-core:106345] [Ruby master Feature#18369] users.detect(:name, "Dorian") as shorthand for users.detect { |user| user.name == "Dorian" }

Issue #18369 has been updated by sawa (Tsuyoshi Sawada).


I think that is too specific to be a part of Ruby core. I don't think this feature would be accepted.

I think you can define a Proc constructor method for yourself like the following:

```ruby
def attreql k, v
   Proc.new{_1.send(k) == v}
end
```

Then, you can do:

```ruby
class A
  attr_reader :foo, :bar

  def initialize foo, bar
    @foo, @bar = foo, bar
  end
end

array = [A.new(1, 2), A.new(3, 4), A.new(5, 6)]
array.detect(&attreql(:foo, 3)) # => #<A:0x00007fb751064630 @foo=3, @bar=4>
array.all?(&attreql(:foo, 3)) # => false
```


----------------------------------------
Feature #18369: users.detect(:name, "Dorian") as shorthand for users.detect { |user| user.name == "Dorian" }
https://bugs.ruby-lang.org/issues/18369#change-94982

* Author: dorianmariefr (Dorian Mari辿)
* Status: Open
* Priority: Normal
----------------------------------------
Hi,

I was thinking I often do things like `collection.detect { |item| item.attribute == value }` and a shorthand like `collection.detect(:attribute, value)` would be quite useful

What do you think?

And I know there is `collection.detect { _1.attribute == value }` but I try not to use `_1` and this syntax would be shorter and simpler

Could also apply to other methods like `all?` (`collection.all?(:attribute, value)`), and basically any Enumerable method https://rubydoc.info/stdlib/core/Enumerable



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