{{alias}}( arr, [options,] clbk )
    Finds elements in an array-like object that satisfy a test condition.

    Parameters
    ----------
    arr: Array|TypedArray|string
        Object from which elements will be tested.

    options: Object (optional)
        Options.

    options.k: integer (optional)
        Limits the number of returned elements. The sign determines the
        direction in which to search. If set to a negative integer, the function
        searches from last element to first element. Default: arr.length.

    options.returns: string (optional)
        If `values`, values are returned; if `indices`, indices are returned; if
        `*`, both indices and values are returned. Default: 'indices'.

    clbk: Function
        Function invoked for each array element. If the return value is truthy,
        the value is considered to have satisfied the test condition.

    Returns
    -------
    out: Array
        Array of indices, element values, or arrays of index-value pairs.

    Examples
    --------
    > var data = [ 30, 20, 50, 60, 10 ];
    > function condition( val ) { return val > 20; };
    > var vals = {{alias}}( data, condition )
    [ 0, 2, 3 ]

    // Limit number of results:
    > data = [ 30, 20, 50, 60, 10 ];
    > var opts = { 'k': 2, 'returns': 'values' };
    > vals = {{alias}}( data, opts, condition )
    [ 30, 50 ]

    // Return both indices and values as index-value pairs:
    > data = [ 30, 20, 50, 60, 10 ];
    > opts = { 'k': -2, 'returns': '*' };
    > vals = {{alias}}( data, opts, condition )
    [ [ 3, 60 ], [ 2, 50 ] ]

    See Also
    --------