
{{alias}}( x, y )
    If a function does not throw, returns the function return value; otherwise,
    returns `y`.

    Parameters
    ----------
    x: Function
        Function to try invoking.

    y: any
        Value to return if a function throws an error.

    Returns
    -------
    z: any
        Either the return value of `x` or the provided argument `y`.

    Examples
    --------
    > function x() {
    ...     if ( {{alias:@stdlib/random/base/randu}}() < 0.5 ) {
    ...         throw new Error( 'beep' );
    ...     }
    ...     return 1.0;
    ... };
    > var z = {{alias}}( x, -1.0 )
    <number>

    See Also
    --------

