node-password-generator/dist/password-randomizer.js

A simple lightweight npm library for password generator. It allows you to create random unqiue password on the fly.

/**
 * @param  {string} characterList
 * @param  {number} length
 * @returns string
 */
export default function passwordRandomizer(characterList, length) {
    // If `characterList` is unset or empty string
    if (!characterList) {
        throw new Error('The `characterList` can not be empty');
    }
    // Initializing, password variable as empty string
    let password = ``;
    // Generate one password based on options
    for (let i = 0; i < length; ++i) {
        password += characterList[Math.round(Math.random() * characterList.length)];
    }
    return password;
}