let now = new Date();

let yesterday = new Date();
yesterday.setDate(now.getDate() - 1);

let tomorrow = new Date(
    now.getTime() + 24 * 60 * 60 * 1000);

let nextMonth = new Date();
nextMonth.setMonth(now.getMonth() + 1);

let nextYear = new Date();
nextYear.setYear(now.getFullYear() + 1);

console.log(`now is \"${now
    .toLocaleDateString()}\"`);
console.log(`yesterday is \"${yesterday
    .toLocaleDateString()}\"`);
console.log(`tomorrow is \"${tomorrow
    .toLocaleDateString()}\"`);
console.log(`nextMonth is \"${nextMonth
    .toLocaleDateString()}\"`);
console.log(`nextYear is \"${nextYear
    .toLocaleDateString()}\"`);