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

To use the endOfISOWeekYear function from the date-fns library in TypeScript, you would first need to install the library using npm:

index.ts
npm install date-fns
21 chars
2 lines

Then, you can import the endOfISOWeekYear function and use it in your TypeScript code like this:

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

const date = new Date('2022-07-15');
const endOfYearWeek = endOfISOWeekYear(date);

console.log(endOfYearWeek); // Output: 2023-01-01T23:59:59.999Z
194 chars
7 lines

In this example, we first import the endOfISOWeekYear function from the date-fns library. We then create a new Date object set to July 15, 2022. Finally, we call the endOfISOWeekYear function with the date object to get the end of the ISO week year, and log the result to the console.

The endOfISOWeekYear function returns a Date object representing the end of the ISO week year (December 31st of the specified year or the Sunday of the week containing January 1st of the following year).