hungryBears.js

/**
 * Given an array of objects representing bears in a forest, each with a
 * name and hunger level, return the names of all bears whose hunger
 * level is above the forest average, sorted alphabetically.
 *
 * @param bears{name: string, hunger: number}[]
 * @returns {string[]}
 */
function hungryBears(bears) {
    // Was happy to reacquaint myself with [],reduce and "".localeCompare
    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce
    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/localeCompare
    const averageHunger = bears.reduce((sum, bear) => sum + bear.hunger, 0) / bears.length;
    return bears
        .filter(bear => bear.hunger > averageHunger)
        .map(bear => bear.name)
        .sort((a, b) => a.localeCompare(b));
}

/* from RENDEZVOUS WITH CASSIDOO ~ Interview question of the week
https://buttondown.com/cassidoo/archive/the-future-is-sending-back-good-wishes-and/ */