feat(core): Allow to specify depth to dropUndefinedKeys
#15783
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Today,
dropUndefinedKeys()
will iterate through all objects and arrays and make sure to drop undefined keys everywhere.In reality, we do not need this behavior in most/many cases - often, just removing undefined values one level deep should be more than good enough (apart from cases like #15781 where we maybe do not need it at all!)
So this PR introduces an optional second argument to
dropUndefinedKeys()
which is a depth, which defaults toInfinity
. It will drop undefined keys recursively until it reaches this depth.By specifying e.g.
1
there, only the top level of the passed in object will be checked for undefined values.