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

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

index.ts
npm install date-fns
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or

index.ts
yarn add date-fns
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After that, you can use the setWeekYear function in your TypeScript code by importing it from the date-fns module like this:

index.ts
import { setWeekYear } from 'date-fns';
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The setweekyear function takes two arguments - a Date object and a number representing the desired week year. It returns a new Date object with the updated week year value. Here's an example of how to use setweekyear function:

index.ts
const date = new Date('2021-10-10'); // 10th October 2021
const updatedDate = setWeekYear(date, 2022); // set the week year to 2022
console.log(updatedDate.toISOString()); // "2022-01-02T00:00:00.000Z"
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In this example, we create a Date object representing the date 2021-10-10. We then use the setweekyear function to update the week year of the date to 2022. The function returns a new Date object with the updated week year value, which we log to the console in the ISO string format.

Note that setweekyear function only updates the week year value of the Date object, leaving other fields (such as day, month, and time) unchanged.