Support negative indices in getCall #2199
Merged
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This allows getting calls indexed from the end of the array
e.g. -1 gets the last call, -2 gets the penultimate call etc.
Purpose (TL;DR)
Implements the proposal in #2196
Allows the user to get the -nth call when the total number of calls is arbitrary, without having to wrap around getCalls() function.
In an ideal world, the full set of calls should be known and this function would not be necessary, but for some use cases this can be useful (see #2196 for my use case). I understand this is a bit of a niche case so don't mind if you choose to close instead of merge!
How to verify
npm install
npm test