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

To use hourstoseconds function from date-fns library in typescript, first you need to install the date-fns library and its TypeScript type definitions if they have not been installed yet.

npm install -S date-fns
npm install -S @types/date-fns
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Once installed, you can import the hourstoseconds function from the date-fns package and use it like this:

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

const hours = 2;
const seconds = hourstoseconds(hours);

console.log(seconds); // Output: 7200
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The hourstoseconds function takes a number of hours as input and returns the number of seconds that represents that amount of time.

Note: Make sure to import the function from the correct date-fns module name (i.e. date-fns or date-fns/esm/fp), depending on how you installed the library.