let now = new Date()

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

let tomorrow = new Date()
tomorrow.setDate(now.getDate() + 1)

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

let nextYear = new Date()
nextYear.setFullYear(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()}\"`)