{{alias}}( x, fcn[, thisArg] )
    Fills an input ndarray according to a callback function.

    The function *mutates* the input ndarray.

    The function assumes that each element in the underlying input ndarray data
    buffer has one, and only one, corresponding element in input ndarray view
    (i.e., a provided ndarray is not a broadcasted ndarray view).

    The callback function is provided the following arguments:

    - value: current array element.
    - indices: current array element indices.
    - arr: the input ndarray.

    Parameters
    ----------
    x: ndarrayLike
        Input ndarray.

    fcn: Function
        Callback function.

    thisArg: any (optional)
        Callback function execution context.

    Returns
    -------
    out: ndarrayLike
        Input ndarray.

    Examples
    --------
    > var opts = { 'dtype': 'float64' };
    > var x = {{alias:@stdlib/ndarray/zeros}}( [ 2, 2 ], opts );
    > function fcn() { return 10.0; };
    > var out = {{alias}}( x, fcn )
    <ndarray>[ [ 10.0, 10.0 ], [ 10.0, 10.0 ] ]
    > var bool = ( out === x )
    true

    See Also
    --------