
{{alias}}( x, shape, colex, clbk[, thisArg] )
    Flattens a three-dimensional nested array according to a callback function.

    The function assumes that all nested arrays have the same length (i.e., the
    input array is *not* a ragged array).

    The callback function is provided the following arguments:

    - value: nested array element.
    - indices: element indices (in lexicographic order).
    - arr: the input array.

    Parameters
    ----------
    x: ArrayLikeObject
        Input array.

    shape: Array<integer>
        Array shape.

    colex: boolean
        Specifies whether to flatten array values in colexicographic order.

    clbk: Function
        Callback function.

    thisArg: any (optional)
        Callback execution context.

    Returns
    -------
    out: Array
        Flattened array.

    Examples
    --------
    > function fcn( v ) { return v * 2; };
    > var x = [ [ [ 1, 2 ] ], [ [ 3, 4 ] ] ];
    > var out = {{alias}}( x, [ 2, 1, 2 ], false, fcn )
    [ 2, 4, 6, 8 ]
    > out = {{alias}}( x, [ 2, 1, 2 ], true, fcn )
    [ 2, 6, 4, 8 ]


{{alias}}.assign( x, shape, colex, out, stride, offset, clbk[, thisArg] )
    Flattens a three-dimensional nested array according to a callback function
    and assigns elements to a provided output array.

    The function assumes that all nested arrays have the same length (i.e., the
    input array is *not* a ragged array).

    The callback function is provided the following arguments:

    - value: nested array element.
    - indices: element indices (in lexicographic order).
    - arr: the input array.

    Parameters
    ----------
    x: Array
        Input array.

    shape: Array<integer>
        Array shape.

    colex: boolean
        Specifies whether to flatten array values in colexicographic order.

    out: Collection
        Output array.

    stride: integer
        Output array stride.

    offset: integer
        Output array index offset.

    clbk: Function
        Callback function.

    thisArg: any (optional)
        Callback execution context.

    Returns
    -------
    out: Array
        Output array.

    Examples
    --------
    > function fcn( v ) { return v * 2; };
    > var x = [ [ [ 1, 2 ] ], [ [ 3, 4 ] ] ];
    > var out = [ 0, 0, 0, 0 ];
    > var v = {{alias}}.assign( x, [ 2, 1, 2 ], false, out, 1, 0, fcn )
    [ 2, 4, 6, 8 ]
    > var bool = ( v === out )
    true
    > out = [ 0, 0, 0, 0 ];
    > {{alias}}.assign( x, [ 2, 1, 2 ], true, out, 1, 0, fcn );
    > out
    [ 2, 6, 4, 8 ]

    See Also
    --------

