Write code that enhances all date objects such that you can call the date.nextDay() method on any date object and it will return the next day in the format YYYY-MM-DD as a string.
Example 1:
Input: date = "2014-06-20"
Output: "2014-06-21"
Explanation:
const date = new Date("2014-06-20");
date.nextDay(); // "2014-06-21"
Example 2:
Input: date = "2017-10-31" Output: "2017-11-01" Explanation: The day after 2017-10-31 is 2017-11-01.
Constraints:
new Date(date)is a valid date object
declare global {
interface Date {
nextDay(): string;
}
}
Date.prototype.nextDay = function () {
const date = new Date(this.valueOf());
date.setDate(date.getDate() + 1);
return date.toISOString().slice(0, 10);
};
/**
* const date = new Date("2014-06-20");
* date.nextDay(); // "2014-06-21"
*/