判断指定日期是不是 n 天后 ​

import { isTomorrow } from 'warbler-js';
const result = isTomorrow(date, n);

const isTomorrow = (date, n = 1) => {
  const curDate = new Date(); // 当前日期
  curDate.setDate(curDate.getDate() + n); // 当前日期加一天
  // 指定日期
  const tarData = date
    ? new Date(typeof date === 'string' && date.includes('-') ? date.replace(/-/g, '/') : date)
    : new Date();
  return ['getFullYear', 'getMonth', 'getDate'].every((i) => curDate[i]() === tarData[i]());
};

import { isTomorrow } from 'warbler-js';
// 测试日期为2021-09-26
const result1 = isTomorrow(new Date());
const result2 = isTomorrow('2021-09-27', 1);
const result3 = isTomorrow('2021-09-27', 2);
const result4 = isTomorrow('2021-09-28', 2);
console.log(result1); //=> false
console.log(result2); //=> true
console.log(result3); //=> false
console.log(result4); //=> true