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

To use the getDay function from date-fns in JavaScript, you need to install the date-fns module first. You can install it using npm by running the following command in your terminal:

index.tsx
npm install date-fns
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Then, you can import the getDay function from date-fns and use it to get the day of the week for a given date. Here's an example:

index.tsx
const { getDay } = require('date-fns');

const date = new Date('2021-05-18');
const dayOfWeek = getDay(date);

console.log(dayOfWeek); // Output: 2 (which means Tuesday)
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In this example, we imported the getDay function from date-fns, created a new date object for May 18th, 2021, and used the getDay function to get the day of the week for that date. The getDay function returns a number between 0 and 6, where 0 is Sunday, 1 is Monday, 2 is Tuesday, and so on.