how to use the lastdayofisoweekyear function from date-fns in javascript

To use lastDayOfISOWeekYear function from date-fns in javascript, you need to follow these steps:

1. Install date-fns package using npm or yarn.

npm install date-fns
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OR

yarn add date-fns
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2. Import the required function from date-fns in your javascript file.

index.tsx
import { lastDayOfISOWeekYear } from 'date-fns';
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3. Call the function with the ISO week year as the argument to get the last day of the ISO week year.

index.tsx
const lastDayOfYear = lastDayOfISOWeekYear(2022);
console.log(lastDayOfYear); // Output: 2023-01-01T00:00:00.000Z
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In the above example, we passed 2022 as the ISO week year to the function lastDayOfISOWeekYear and it returned the last day of the ISO week year in the format 2023-01-01T00:00:00.000Z.