{{alias}}( arr, path[, options] )
    Extracts a nested property value from each element of an object array.

    If a key path does not exist, the function sets the plucked value as
    `undefined`.

    Extracted values are not cloned.

    Parameters
    ----------
    arr: Array
        Source array.

    path: string|Array
        Key path.

    options: Object (optional)
        Options.

    options.copy: boolean (optional)
        Boolean indicating whether to return a new data structure. Default:
        true.

    options.sep: string (optional)
        Key path separator. Default: '.'.

    Returns
    -------
    out: Array
        Destination array.

    Examples
    --------
    > var arr = [
    ...     { 'a': { 'b': { 'c': 1 } } },
    ...     { 'a': { 'b': { 'c': 2 } } }
    ... ];
    > var out = {{alias}}( arr, 'a.b.c' )
    [ 1, 2 ]
    > arr = [
    ...     { 'a': [ 0, 1, 2 ] },
    ...     { 'a': [ 3, 4, 5 ] }
    ... ];
    > out = {{alias}}( arr, [ 'a', 1 ] )
    [ 1, 4 ]

    See Also
    --------