@react-native-module/get-random-values/lib/es/src/index.js

implementation of getRandomValues for React Native

import fastBase64Decode from '../node_modules/fast-base64-decode/index.js';
import { TypeMismatchError, QuotaExceededError } from './errors.js';
import { getRandomBase64 } from './lib.js';

// Web API Same
function getRandomValues(array) {
    // For web
    // If you're running react-native debug mode (Chrome debug)
    // calling request is replaced globalThis.crypto.getRandomValues
    // If you ignore this, you may get error on getRandomBase64
    if (globalThis.crypto) {
        if (globalThis.crypto.getRandomValues) {
            return globalThis.crypto.getRandomValues(array);
        }
    }
    if (!(array instanceof Int8Array || array instanceof Uint8Array || array instanceof Int16Array || array instanceof Uint16Array || array instanceof Int32Array || array instanceof Uint32Array || array instanceof Uint8ClampedArray)) {
        throw new TypeMismatchError('Expected an integer array');
    }
    if (array.byteLength > 65536) {
        throw new QuotaExceededError('Can only request a maximum of 65536 bytes');
    }
    fastBase64Decode(getRandomBase64(array.byteLength), new Uint8Array(array.buffer, array.byteOffset, array.byteLength));
    return array;
}

export { getRandomValues };