Random integer generation - only different numbers

Is there a way to generate n random numbers that all different ?
The standard random widget generates same identical numbers in the list too.

It is possible, what you do is generate N successive integers, say all numbers from zero to a thousand, then you use Random Reduce to remove some of them. You can finally jitter your remaining list to make the ordering random instead of increasing.

Of course you cannot generate 100 different random integers in the range 0-20, but I’m assuming your range is bigger than your count.

Thanks a lot

What does the “jitter” expression means anyway?