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

To use the monthstoquarters function from the date-fns library in TypeScript, you can follow these steps:

1. First, you need to install the date-fns library and its types for TypeScript by running the following command in your terminal:

   index.ts
   npm install date-fns @types/date-fns
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2. Import the monthstoquarters function from the date-fns library in your TypeScript file using the following code:

   index.ts
   import { monthstoquarters } from 'date-fns';
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3. You can now use the monthstoquarters function in your code to get the number of quarters between two date values. Here's an example:

   index.ts
   const startDate = new Date('2020-01-15');
   const endDate = new Date('2021-09-30');
   const quarters = monthstoquarters(startDate, endDate);
   console.log(quarters); // Output: 6
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   In this example, the monthstoquarters function calculates the number of quarters between January 15, 2020, and September 30, 2021, which is 6 quarters. The function takes two arguments: the start date and the end date, both of which must be Date objects.

That's it! You have successfully used the monthstoquarters function from the date-fns library in TypeScript.