getRandomValues

The getRandomValues() method fills the passed TypedArray with cryptographically sound random values.

Usage

getRandomValues(typedArray)

Parameters

Name	Type	Description
`typedArray`	`TypedArray`	An integer-based `TypedArray` to fill with random values. Accepted `TypedArray` specific types are: `Int8Array`, `Uint8Array`, `Uint8ClampedArray`, `Int16Array`, `Uint16Array`, `Int32Array`, or `Uint32Array`.

Return Value

The same array is passed as the typedArray parameter with its contents replaced with the newly generated random numbers. The typedArray parameter is modified in place, and no copy is made.

Throws

Type	Description
`QuotaExceededError`	Thrown when `typedArray` is too large and its `byteLength` exceeds 65536.

Example

export default function () {
  const array = new Uint32Array(10);
  crypto.getRandomValues(array);

  for (const num of array) {
    console.log(num);
  }
}