How to calculate the date yesterday in JavaScript

To calculate yesterday's date in JavaScript, follow these steps:

1. Get the current date.
2. Create a new Date object and subtract one day from the current date.

Here is the implementation code:

javascript
// Get the current date
const today = new Date();

// Display today's date
console.log("Today's date is: " + today.toDateString());

// Calculate yesterday's date
const yesterday = new Date(today);

// Subtract one day
yesterday.setDate(yesterday.getDate() - 1);

// Display yesterday's date
console.log("Yesterday's date is: " + yesterday.toDateString());

This code first creates a Date object for the current date, then modifies the date by using the getDate() and setDate() methods to obtain yesterday's date. Finally, it converts the date to a more readable format using the toDateString() method. This approach is concise and straightforward, suitable for most scenarios requiring the calculation of yesterday's date.