Matching Brackets

Instructions

Given a string containing brackets [], braces {}, parentheses (), or any combination thereof, verify that any and all pairs are matched and nested correctly.

There are many ways to accomplish this exercise, but we've provided some additional stubs for folks who'd like to practice writing their own ability handlers.

The signature for the checkBalance helper function given for this exercise makes use of an ability requirement, {Stack}. The ability Stack is defined for you, but the handler, Stack.run is not! If you chose, you can implement the Stack.run, checkBalance, and isPaired function. The tests will run even if you choose not to implement this exercise with abilities.