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

To use the differenceInQuarters function from the date-fns library in Typescript, first, you need to install the date-fns library using npm. You can use the following command to do so:

index.ts
npm install date-fns
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After installing the library, you can import the differenceInQuarters function in your Typescript code as shown below:

index.ts
import { differenceInQuarters } from 'date-fns';
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Now, you can use the differenceInQuarters function in your code to calculate the number of quarters between two dates. The function takes two arguments, the first argument is the end date, and the second argument is the start date. The function returns the number of quarters between the two dates.

Here is an example:

index.ts
import { differenceInQuarters } from 'date-fns';

const startDate = new Date('2022-01-01');
const endDate = new Date('2023-12-31');

const quarters = differenceInQuarters(endDate, startDate);

console.log(`Number of quarters between ${startDate} and ${endDate} is ${quarters}`);
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This will output the following:

index.ts
Number of quarters between Sat Jan 01 2022 00:00:00 GMT+0000 (Greenwich Mean Time) and Sun Dec 31 2023 00:00:00 GMT+0000 (Greenwich Mean Time) is 8
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In the above example, we have calculated the number of quarters between two dates using the differenceInQuarters function.