Fourier transform of hamming window function

I want to apply fourier transform onto hamming window but when I use fft function to get fourier transform but it shows graph like showed below. When I referred https://en.wikipedia.org/wiki/Window_function#Hamming_window they show different graph. There is also code attached. Can someone please help me to figure out.

if true

    if true
      hfft = hamming(framelength);
      plot(abs(fft(hfft)));
    end
  end

Answer 1

[jie li]

framelength = 60

hfft = hamming(framelength);

%hfft = rectwin(framelength);

%hfft = blackman(framelength);

A = fft(hfft, 2048) / (framelength /2);

mag = abs(fftshift(A));

freq = linspace(-0.5, 0.5, length(A));

response = 20 * log10(mag);

% lowvalue = -80;

% response(response < lowvalue) = lowvalue;

plot(freq,response)