get-random-values-polypony/node-randomBytes.js

Synchronous randombytes function that works in node, the browser & react-native!

const crypto=require("crypto");function randomFillUint8(input,bytes){const len=input.length;for(let i=0;i<len;i++)input[i]=bytes[i];return input}module.exports=function getRandomValuesRandomBytes(input){const bytes=crypto.randomBytes(input.byteLength);if(input instanceof Uint8Array)return randomFillUint8(input,bytes);if(input&&input.buffer instanceof ArrayBuffer){const uint8Array=new Uint8Array(input.buffer);return randomFillUint8(uint8Array,bytes),input}throw Object.assign(new TypeError(`[ERR_INVALID_ARG_TYPE]: The "buf" argument must be an instance of ArrayBufferView. Received type ${typeof input} (${input})`),{code:"ERR_INVALID_ARG_TYPE"})};