unique-usernames/dist/index.js

unique-usernames is a lightweight and customizable npm package designed to generate unique and creative usernames for apps, organizations, and platforms. Whether you're building a social media app, a gaming platform, or any service that requires unique us

import { quirkyAdjectives, quirkyNouns, marvelNouns, cartoonNouns, animeNouns, nfswAdjectives } from "./constant";
const genreAdjectives = {
    quirky: quirkyAdjectives,
    nfsw: nfswAdjectives,
};
const genreNouns = {
    quirky: quirkyNouns,
    marvel: marvelNouns,
    cartoons: cartoonNouns,
    anime: animeNouns,
};
export function generateUniqueUsername({ adjectiveGenre = "quirky", nounGenre = "quirky", serial, separator = false, shouldCapitalize = false, isUsernameTaken = () => false, } = {}) {
    const adjectives = genreAdjectives[adjectiveGenre];
    const nouns = genreNouns[nounGenre];
    const maxAttempts = 1000; // Limit attempts to avoid infinite loops
    let attempt = 0;
    let username;
    do {
        if (attempt >= maxAttempts) {
            throw new Error("Unable to generate a unique username after multiple attempts.");
        }
        const randomNumber = serial !== null && serial !== void 0 ? serial : Math.floor(Math.random() * 1000000); // Support up to 1M users
        const randomAdjective = adjectives[Math.floor(Math.random() * adjectives.length)];
        const randomNoun = nouns[Math.floor(Math.random() * nouns.length)];
        const separatorChar = separator && Math.random() < 0.5 ? "_" : "";
        username = `${randomAdjective}${separatorChar}${randomNoun}`;
        if (shouldCapitalize) {
            username = username
                .split(separatorChar)
                .map((word) => word.charAt(0).toUpperCase() + word.slice(1))
                .join(separatorChar);
        }
        username = `${username}${randomNumber}`;
        attempt++;
    } while (isUsernameTaken(username));
    return username;
}