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2758. Next Day

Description

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

Solutions

• TypeScript

• 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"
   */
  
  

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