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

To use the subweeks function from the date-fns library in TypeScript, you first need to install the library by running the following command:

index.ts
npm install date-fns
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Then you can import the subWeeks function from the library in your TypeScript file as follows:

index.ts
import { subWeeks } from 'date-fns';
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The subWeeks function takes two arguments:

1. date: The date object that you want to subtract weeks from.
2. amount: The number of weeks that you want to subtract from the date.

Here's an example of how to use the subWeeks function to subtract 2 weeks from a given date:

index.ts
const today = new Date();
const twoWeeksAgo = subWeeks(today, 2);

console.log(`Today: ${today}`);
console.log(`Two weeks ago: ${twoWeeksAgo}`);
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Output:

index.ts
Today: Wed Aug 04 2021 11:27:00 GMT-0700 (Pacific Daylight Time)
Two weeks ago: Wed Jul 21 2021 11:27:00 GMT-0700 (Pacific Daylight Time)
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In this example, we first create a new Date object called today. We then pass this object and the number 2 as arguments to the subWeeks function, which returns a new Date object representing two weeks ago from today. Finally, we log both dates to the console.