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

To use the isLastDayOfMonth function from the date-fns library in JavaScript, you need to first install the library if you haven't already. You can do this by running npm install date-fns in your terminal.

Once you have the library installed, you can import the isLastDayOfMonth function like this:

index.tsx
import { isLastDayOfMonth } from 'date-fns';
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Then, you can use the function to check if a given date is the last day of its month like this:

index.tsx
const date = new Date('2021-12-31');
const isLastDay = isLastDayOfMonth(date);

console.log(isLastDay); // true
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In this example, we create a new Date object representing December 31st, 2021, and then pass that date to the isLastDayOfMonth function. The function returns true because December 31st is the last day of its month. We then log the result to the console.