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Also noticed that there are a lot of inconsistencies between the RW Swift style guide and the current implementation.
Going to refactor the Swift file in the playground. Here are a few changes that I hope to achieve:
Here's an example of such a change:
Many of the methods return a tuple. For example:
isPrefix
is a method that checks theTrie
to see if the argument exists in theTrie
. If it exists, the method returns a node object andtrue
. If it doesn't exist, the return isnil
andfalse
. The value the optional makes the boolean unnecessary.Trie
implementation.readme
appropriately.