Issue #11690 has been updated by Nobuyoshi Nakada.
Daniel P. Clark wrote:
> Maybe we could replace `to_be_assigned_with` to `slurp`, `consume`, `devour`, or `injest` ;-)
My dictionary doesn't have the last word, maybe a compound word from `inject` and `ingest`?
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Feature #11690: Update Hash during multiple assignment
https://bugs.ruby-lang.org/issues/11690#change-54886
* Author: Daniel P. Clark
* Status: Open
* Priority: Normal
* Assignee:
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Given that we can assign multiple variables at once
~~~ruby
a,b,c = 1,2,3
~~~
It would be nice to be able to update a Hash during multiple assignment rather than replacing it. Currently
~~~ruby
x = {a: 1, b: 2}
x, y ,z = {c: 3}, 6, 7
x
# => {c: 3}
~~~
What I propose is adding `Hash#update=` to permit updating during multiple assignment.
~~~ruby
class Hash
def update=(h)
update(h)
end
end
x = {a: 1, b: 2}
x.update, y ,z = {c: 3}, 6, 7
x
# => {a: 1, b: 2, c: 3}
~~~
This would be most useful in scenarios where a method or proc return multiple values. When the method returns the values we don't normally know the key outside where the hash assignment is.
~~~ruby
example = proc { [{:hi => :hello}, 5] }
hash = {}
# Currently in Ruby with an Unknown key multiple assignment isn't an option
hash[????], current = example.call
# We currently have to two step it
result, current = example.call
hash.update(result)
~~~
But with `Hash#update=` we don't have to know the key.
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