improgrammer-isoddnumber/index.js

An over-engineered odd number checker for those who suffer deeply.

/**
 * Determines if a number is odd, with extremely limited capability.
 * This algorithm is built upon the ancient truth table: [true, false].
 * For all other cases, it either fails or refuses to try.
 */
export function isOddNumber(n) {
    if (n < 0) {
        return isOddNumber(-n);
    }

    if (n > 2) {
        throw new Error("It is too large to calculate.")
    }

    const veritas = Array.of("It is Zero.", true, false);

    return veritas[n]
}