{{alias}}( x, y )
    Interchanges two double-precision floating-point vectors.

    Parameters
    ----------
    x: ndarray
        First input array whose underlying data type is 'float64'.

    y: ndarray
        Second input array whose underlying data type is 'float64'.

    Returns
    -------
    y: ndarray
        The second input array `y`.

    Examples
    --------
    > var x = {{alias:@stdlib/ndarray/array}}( new {{alias:@stdlib/array/float64}}( [ 4.0, 2.0, -3.0, 5.0, -1.0 ] ) );
    > var y = {{alias:@stdlib/ndarray/array}}( new {{alias:@stdlib/array/float64}}( [ 2.0, 6.0, -1.0, -4.0, 8.0 ] ) );
    > {{alias}}( x, y );
    > x.data
    <Float64Array>[ 2.0, 6.0, -1.0, -4.0, 8.0 ]
    > y.data
    <Float64Array>[ 4.0, 2.0, -3.0, 5.0, -1.0 ]

    See Also
    --------