how to use the setdayofyear function from the date-fns library in typescript

To use the setDayOfYear function from the Date-FNS library in TypeScript, you need to install the library first in your project. You can do this by running the following command in your terminal:

npm install date-fns --save
28 chars
2 lines

Once you have installed the library, you can import the setDayOfYear function and use it in your TypeScript code. Here's an example:

index.ts
import { setDayOfYear } from 'date-fns';

const date = new Date('2021-06-06T00:00:00.000Z');
const result = setDayOfYear(date, 200);

console.log(result); // Output: 2021-07-19T00:00:00.000Z
191 chars
7 lines

In the example above, we import the setDayOfYear function from the Date-FNS library. We then create a date variable with a specific date and time. We then call the setDayOfYear function with the date and the day of the year we want to set (in this case, the 200th day of the year). The function returns a new Date object with the specified day of the year. Finally, we log the result to the console.

That's how you can use the setDayOfYear function from the Date-FNS library in TypeScript.