81. JK Flip-Flop

How do you plan to solve it?

module jk_ff (
    input  CLK,
    input  J,
    input  K,
    output reg Q
);

always @(posedge CLK)
begin
    case ({J, K})

        // Hold
        2'b00: Q <= Q;

        // Reset
        2'b01: Q <= 1'b0;

        // Set
        2'b10: Q <= 1'b1;

        // Toggle
        2'b11: Q <= ~Q;

    endcase
end

endmodule