how to use the differenceinseconds function from date-fns in javascript

To use the differenceInSeconds function from date-fns in JavaScript, you first need to install the date-fns package:

index.tsx
npm install date-fns
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Then, you can import the differenceInSeconds function and use it as follows:

index.tsx
import { differenceInSeconds } from 'date-fns';

const date1 = new Date('2021-01-01T00:00:00');
const date2 = new Date('2021-01-01T00:05:15');

const diffInSeconds = differenceInSeconds(date2, date1);

console.log(diffInSeconds); // Output: 315
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In the example above, we imported the differenceInSeconds function from date-fns and passed two Date objects as arguments. The function calculates the difference between the two dates in seconds and returns the result. Finally, we logged the result to the console.

Note that the differenceInSeconds function will return a positive value if the second date is greater than the first date, and a negative value otherwise.