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ArgumentRequired?Data TypeDescription
obj_colYString or ObjectFunction returning an Object or Object literal to be filtered
keysYArrayArray representing the keys to filter. Each element can be a String, function returning a String, or a reference to a column of String values.

D s lang notes



Object literal or function returning an Object whose keys you want to extract into an array.


Required?Data TypeExample Value
YesObject literal , or function, or column referencemyObj


This parameter contains an Array of Strings, each of which represents a key whose values are to be returned with the key as the output of the function.