Ruby Issue Tracking System

11/18/2019

01:16 PM Ruby Feature #15563: #dig that throws an exception if a key doesn't exist

Removed the two discussion points in the previous edit. This edit adjusts the last sentence to reflect this. 3limin4t0r (Johan Wentholt)

01:08 PM Ruby Feature #15563: #dig that throws an exception if a key doesn't exist

Changed naming from `#dig_e` to `#traverse`. Removed alternative options, and kept the strict version since `#fetch` is also strict. Possibility to expand upon this with a block or `:default` keyword argument is possible, but should be i... 3limin4t0r (Johan Wentholt)

01/28/2019

05:06 PM Ruby Feature #15563: #dig that throws an exception if a key doesn't exist

My scenario would be similar to k0kubuns scenario.
```Ruby
# The connection translates the request to JSON and parses the response
# from JSON into the correct objects. In this case a nested hash structure.
response = connection.se... 3limin4t0r (Johan Wentholt)

01/25/2019

05:48 PM Ruby Feature #15563: #dig that throws an exception if a key doesn't exist

I just discovered that `#dig` also call private methods. I updated the provided examples to do the same.
```Ruby
hash = { b: 'b' }
hash.singleton_class.send(:private, :dig)
{ a: hash }.dig(:a, :b)
#=> 'b'
``` 3limin4t0r (Johan Wentholt)

05:07 PM Ruby Feature #15563 (Open): #dig that throws an exception if a key doesn't exist

Ruby 2.3.0 introduced `#dig` for `Array`, `Hash` and `Struct`. Both `Array` and `Hash` have `#fetch`, which works the same way as `#[]`, but instead of returning the default value, raises an exception (unless a second argument or block i... 3limin4t0r (Johan Wentholt)