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

The endOfDay function from the date-fns library is used to return the end of the day for a given date. Here's an example of how to use it in TypeScript.

First, make sure to install the date-fns library using npm or yarn:

npm install date-fns
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Then, import the endOfDay function into your TypeScript file:

index.ts
import { endOfDay } from 'date-fns';
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Now, you can use the endOfDay function to get the end of the day for a given date:

index.ts
const someDate = new Date(); // create a new date object
const endOfSomeDate = endOfDay(someDate); // get the end of the day for the given date

console.log(endOfSomeDate); // output: 2021-06-10T23:59:59.999Z
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Note that the endOfDay function returns a Date object representing the end of the day, with the milliseconds set to 999. If you need to format the date as a string, you can use the format function from the date-fns library or a JavaScript date formatting library like moment.js.