JavaScript Web Cryptography API Cryptographically random data
Example
// 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) can be used with instances of the following classes (described further in Binary Data) and will generate values from the given ranges (both ends inclusive):
Int8Array: -27 to 27-1Uint8Array: 0 to 28-1Int16Array: -215 to 215-1Uint16Array: 0 to 216-1Int32Array: -231 to 231-1Uint32Array: 0 to 231-1
