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

npm install date-fns
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index.tsx
import { previousDay } from 'date-fns';

const today = new Date();
const previousDayDate = previousDay(today);
console.log(previousDayDate);
// Outputs the date of the previous day in the format "YYYY-MM-DD"
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index.tsx
const today = new Date();
const twoDaysAgo = previousDay(today, 2);
console.log(twoDaysAgo);
// Outputs the date two days ago in the format "YYYY-MM-DD"
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