{{alias}}( x )
    Counts the number of truthy values in an array.

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

    Returns
    -------
    out: integer
        Number of truthy values.

    Examples
    --------
    > var out = {{alias}}( [ 0, 1, 1 ] )
    2

    See Also
    --------