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

The tostring function from the date-fns library in TypeScript can be used to convert a date object to a string based on a format string. Here's an example of how it can be used:

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

const date = new Date();
const formattedDate = format(date, 'yyyy-MM-dd HH:mm:ss');

console.log(formattedDate); // Outputs something like "2021-09-30 14:12:45"
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In this example, we first import the format function from the date-fns library. We then create a new Date object, which represents the current date and time. Finally, we use the format function to convert this date object into a formatted string, using the format string "yyyy-MM-dd HH:mm:ss". This format string specifies that we want the year (yyyy), month (MM), and day (dd) to be displayed, separated by hyphens (-), followed by the 24-hour format of the hour (HH), minute (mm), and second (ss), separated by colons (:).

We then log the formatted date string to the console, which should output something like "2021-09-30 14:12:45" for the current date and time (assuming the local timezone is UTC-4).