Why would I call a model instead of using a modulo check?

It calls the Jev model over the network for each number, so it costs latency and tokens where a modulo operator is free and exact. That is the joke.

Does it handle zero, negatives, and odd numbers correctly?

It accepts safe integers including zero and negatives, returns true or false as a promise, and the documented examples hedge with probably and hopefully.

How do I supply the API key and cancel a slow call?

Set the environment key once, or pass an per-call key override, with an optional abort signal for cancellation or timeouts.

Is this safe to depend on in production code?

No. The readme labels it a joke package, so use it for demos and laughs, not for validation logic you depend on.

How do I install and call it?

Add the is-jeven package, get a key from the TypeSafe console and export TYPESAFE_API_KEY, then import { isEven } and await it. The package is MIT-licensed and labels itself a joke.

What is the exact function signature?

isEven(num: number, options?: IsEvenOptions): Promise . num must be a safe integer, including zero and negative integers; options.apiKey overrides the environment variable; and options.signal is an optional AbortSignal for cancellation or a timeout.

What do the example comments admit?

The documented examples are hedged: isEven(2) is shown as true (probably) and isEven(3) as false (hopefully). That is the joke package acknowledging a network model call is a strange way to test parity, since the answer is only as reliable as the judgment behind it.

CommunityJev Demos & Experiments

Is Jeven

Joke JavaScript helper that asks the Jev decision model whether a number is even and resolves to a boolean.

See highlights

Open github.com

Stars: 33
Language: JavaScript
License: MIT
Published by: Community
Author: wobsoriano
Last verified: Oct 2026

wobsoriano/is-jeven

User repository on GitHub

View on GitHub

Is it even? Ask Jev.

Forks: 1
Last pushed: Updated Sep 2026

Repo stats from the GitHub API, cached Oct 2026.

About this project

Uses TypeSafe AI's Jev model under the hood to determine if a number is even. Get an API key from the TypeSafe console, then: num: a safe integer, including zero and negative integers. options.apiKey: overrides the TYPESAFEAPIKEY environment variable. options.signal: an optional AbortSignal for cancellation or a timeout. This is a joke package FYI.

Quoted from the project's README. Read the full README.

Tagscommunity jevbest catalog-import

Works forJev for Classification

Used inJev for Software & DevTools

Languages: JavaScript

Highlights

Single isEven function taking a number with optional key override and abort signal.
Backed by the Jev decision model through a TypeSafe key from the console.
Supports zero, negative, and positive safe integers with a boolean promise result.
Documented as a joke package with test and typecheck scripts under MIT license.

Watch out

Joke package that still spends a real API call per check; needs a TypeSafe key and handles only safe integers. Copy reviewed against the repository README on 2026-10-04, not from running it.

Questions about this entry

Short answers drawn from the linked project or page.

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