05. Vacation

function vacantion(input) {
    let budget = Number(input[0]);
    let season = input[1];
    let location = '';
    let place = '';

    if (season === 'Summer') {
        location = 'Alaska';
    } else {
        location = 'Morocco';
    }

    if (budget > 3000) {
        place = 'Hotel';
        budget *= 0.9;
    } else if (budget > 1000) {
        if (season === 'Summer') {
            budget *= 0.8;
        } else {
            budget *= 0.6;
        }
        place = 'Hut';
    } else if (budget > 0) {
        if (season === 'Summer') {
            budget *= 0.65;
        } else {
            budget *= 0.45;
        }
        place = 'Camp';
    }
    console.log(`${location} - ${place} - ${budget.toFixed(2)}`);
}

Решение с тернарен оператор:

function vacantion(input) {
    let budget = Number(input[0]);
    let season = input[1];

    let location = season === 'Summer' ? 'Alaska' : 'Morocco';

    let place =
        budget > 3000 ? 'Hotel' :
        budget > 1000 ? 'Hut' : 'Camp';

    budget *=
        budget > 3000 ? 0.9 :
        budget > 1000 ? (season === 'Summer' ? 0.8 : 0.6) :
        (season === 'Summer' ? 0.65 : 0.45);

    console.log(`${location} - ${place} - ${budget.toFixed(2)}`);
}