Letter package provides functionality to generate a fake letter value.
npm
npm install @fakerjs/letter --save-dev yarn
yarn add @fakerjs/letter -D import letter from '@fakerjs/letter'; letter(); //=> z letter({'casing': 'upper'}); //=> Z letter({'casing': 'upper', 'locale': 'ru_RU'}); //=> ЯRun tests
npm run test The MIT License (MIT) Copyright (c) Sergey Romanenko