Proposal: Object.path([ ... ], defaultValue)

[Vikash Agrawal]

Hello Everyone,

It is a lot of times that we see `x is not a property of undefined` and to
solve this we have to resort to &&, something like -> data &&
data.childData && data.childData.innerDataArray &&
data.childData.innerDataArray.length
> 0 whiich is quiet verbose.

I suggest, we should add a utility method like Object.path, which takes an
array of strings and returns the value from a given nested object. Also,
this can take a second argument which will be a default value if not found.

This is inspired by path and pathOr as implemented in
http://ramdajs.com/docs/#path

Regards
~Vikash
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