JSFiddle - React, Tailwind, and code Playground

JavaScript

console.log(
    (n=>n&1)(1),
    (n=>n&1)(2),
    (n=>n&1)(3),
    (n=>n&1)(4)
);

console.log(
    (n=>n%2)(1),
    (n=>n%2)(2),
    (n=>n%2)(3),
    (n=>n%2)(4)
);