is-jodd

Is it odd? Ask Jev. The odd companion to is-jeven.

npm install is-jodd
export TYPESAFE_API_KEY="your-key"

import { isOdd } from 'is-jodd';

await isOdd(3); // true (probably)
await isOdd(2, { signal: AbortSignal.timeout(5000) });

Node 24+. Accepts safe integers, including zero and negatives. Pass apiKey to override the environment. Each call asks TypeSafe's Jev model; a probability above 0.5 means true. Invalid inputs, API errors, and malformed answers reject.

Zero runtime dependencies. An 861-byte runtime (40% smaller than is-jeven 1.0.0) and 51 fewer request-body bytes. A 20-pair live test found no consistent latency win. Always await before negating isEven.

Benchmarks and raw results.

This is a joke package. AI can get math wrong. For reliable parity, use n % 2 !== 0.

Licensed under JODD-1T: $1,000,000,000,000 USD and written permission before use. No startup discount. Custom restrictive terms; see the license.

Name by @aurelienbobenrieth. By Jake Casto.