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⚠️ This is the archived documentation for k6 v0.44. Go to the latest version.

getRandomValues

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

Usage

getRandomValues(typedArray)

Parameters

NameTypeDescription
typedArrayTypedArrayAn 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

TypeDescription
QuotaExceededErrorThrown when typedArray is too large and its byteLength exceeds 65536.

Example

example-webcrypto-getrandomvalues.js
import { crypto } from "k6/experimental/webcrypto";
export default function () {
const array = new Uint32Array(10);
crypto.getRandomValues(array);
for (const num of array) {
console.log(num);
}
}