const n = crypto.getRandomValues(new Uint8Array(1))[0]
n >= 0 && n <= 255 // β trueEach random byte is in the range 0-255.
For a Uint8Array, values returned by crypto.getRandomValues() are in the range [0, 255].
Challenge: Verify that a random Uint8Array value is between 0 and 255 inclusive.