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

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

index.ts
npm install date-fns
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Then, you can import the subseconds function in your TypeScript file by adding the following line at the top:

index.ts
import { subSeconds } from 'date-fns';
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After that, you can use the subseconds function to subtract a certain number of milliseconds from a given date. The function takes two arguments: the first is the date to which we want to subtract the milliseconds and the second is the number of milliseconds to subtract. Here is an example:

index.ts
const date = new Date(2021, 4, 20, 16, 30, 0, 500); // May 20, 2021 16:30:00.500
const newDate = subSeconds(date, 2); // May 20, 2021 16:29:58.500
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In this example, we subtracted 2 seconds from the original date and obtained a new date that is 2 seconds earlier, but with the same millisecond value.

Note that the subseconds function can be used with other date-fns functions to perform more complex operations on dates in TypeScript.