Echo JS 0.11.0

https://github.com/shystruk/react-native-android-currency-formatter/blob/main/src/index.tsx

Somewhat surprised Intl isn't in the box, or at least a built-in option, on this one.

It may also be worth either looking into or hand-crafting a tool using the BigInt[1] (Int64) data type, with a fixed precision. Also, worth following the Decimal/BigDecimal proposal[2]

1. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt
2. https://github.com/tc39/proposal-decimal

I wouldn't suggest using this library/approach.  First, read/write in your application directory is begging for trouble.  Second, it's using an array lookup instead of an object/map.  Third, it's not very flexible.

TLDR; 

Use Promise.all for parallel async operations.

    const [a, b, c] = await Promise.all([p1, p2, p3]);

For more/similar details, these two books from Steve Souders are good reads, and very relevant.

1. High Performance Web Sites
2. Even Faster Web Sites

Alternatively to using Firebae... Self-hosting CockroachDB, FaunaDB, Cloudflare KV+Workers, Azure Storage Tables, DynamoDB and other databases behind an API or Cloudflare Workers are some other options as well for backend storage.

Related: MIT Licensed

https://trpc.io/
https://github.com/trpc/trpc

Looks like the author is just re-posting other people's lists.

1. https://github.com/sorrycc/awesome-javascript
2. https://github.com/sindresorhus/awesome-nodejs

Looks like the author is just re-posting other people's lists.

1. https://github.com/sorrycc/awesome-javascript
2. https://github.com/sindresorhus/awesome-nodejs

While I do appreciate the approach... I would note that if you're using TypeScript in a supporting editor (VS Code, for example), the initial approach is pretty reasonable.

Another bit worth mentioning... is the F# style pipeline operator proposal, if you're using Babel. [1]

1. https://github.com/tc39/proposal-pipeline-operator