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

To use the setWeek() function from the Date-fns library in TypeScript, you can follow the steps below:

1. First, install the date-fns library by running the following command in your project's terminal:

   index.ts
   npm install date-fns
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2. Next, import the setWeek() function from the date-fns library in your TypeScript code as follows:

   index.ts
   import { setWeek } from 'date-fns';
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3. You can now use the setWeek() function to set the week number of a Date object as shown in the example below:

   index.ts
   const date = new Date(); // create a new Date object
   const weekNum = 1; // set the week number
   const result = setWeek(date, weekNum); // use the setWeek() function to set the week number
   
   console.log(result); // output the result
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   In this example, we first create a new Date object and set the desired week number. We then call the setWeek() function with these parameters to set the week number of the Date object. Finally, we output the result of the function call to the console.

And that's it! You can now use the setWeek() function from the date-fns library in TypeScript to set the week number of a Date object.