// Create an array with a fixed size and type.
var array = new Uint8Array(5);

// Generate cryptographically random values
crypto.getRandomValues(array);

// Print the array to the console
console.log(array);

[crypto.getRandomValues(array)](<https://developer.mozilla.org/en-US/docs/Web/API/RandomSource/getRandomValues>) can be used with instances of the following classes (described further in http://stackoverflow.com/documentation/javascript/417/binary-data#t=201607192101507088285) and will generate values from the given ranges (both ends inclusive):