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

To use the submonths function from the date-fns library in TypeScript, you should first install the required dependencies. You can do this using npm by running the following command:

npm install date-fns
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Next, you can import the subMonths function into your TypeScript file like this:

index.ts
import { subMonths } from 'date-fns';
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Now you can use the subMonths function to subtract a given number of months from a date. Here's an example:

index.ts
const date = new Date('2022-08-01');
const result = subMonths(date, 3); // Subtract 3 months from the date
console.log(result); // Output: Date object representing May 1 2022
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This will subtract 3 months from the date object, and the result variable will contain a new Date object representing May 1 2022.

Note that the subMonths function only subtracts complete months, so if you subtract 1 month from a date in the middle of a month, the resulting date will be from the previous month with the same date.