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

The defineSetter function from date-fns provides an easy way to update certain values in a date object using setters. This simplifies updating the date by allowing us to call a single function with various setters instead of repeating a lot of code.

Here is an example of how to use the defineSetter function:

index.tsx
import { defineSetters } from 'date-fns'

const date = new Date(2021, 10, 5) // Nov 5th, 2021

// Update the month to be December
defineSetters(date, {
  month: 11 // months are zero-based, so 11 is December
})

console.log(date) // Output: Fri Dec 05 2021 00:00:00 GMT-0800 (Pacific Standard Time)
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In the example above, we import the defineSetters function and create a new Date object with the date November 5th, 2021. We then use the defineSetters function to update the month property of the date object to be December (11). Finally, we log the updated date object to the console which will show the new month value.

With this function, we can easily update other properties of the date object as well, such as the day or year, by chaining additional property setters as needed.