Need a pick?
The dig method is not only defined in Hash, but also in Array, Struct, … It can be used to extract an element from a treelike object by specifying the « path ».
The advantages of dig over the [] method:
- Readability
- Returns
nilif the path doesn’t exist
Last but not least, dig doesn’t care what type of object it is when traversing the « path ». It just needs to respond to the dig method, which allows it to mix types… perfect for JSON!
Link to Ruby documentation for dig with a dedicated page.
