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

You can use the setISOWeekYear function from date-fns to set a different ISO week-numbering year on a Date object in JavaScript.

Here's an example:

index.tsx
const dateFns = require('date-fns');

const date = new Date('2021-05-30');
const newISOWeekYear = 2022;

const newDate = dateFns.setISOWeekYear(date, newISOWeekYear);

console.log(newDate); // Output: 2022-05-29T21:00:00.000Z
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In this example, we first create a Date object with the date May 30, 2021. We then create a new variable newISOWeekYear to set the new ISO week-numbering year that we want to set on the date.

We then use the setISOWeekYear function from date-fns to set the new ISO week-numbering year on the Date object date. The function returns a new Date object with the new ISO week-numbering year set.

We then log the newDate to the console to verify that the new ISO week-numbering year was set correctly.