count days till new year in javascript

index.tsx
// Get the current date
const today = new Date();

// Get the current year and the next year
const currentYear = today.getFullYear();
const nextYear = currentYear + 1;

// Create a new Date object for the first day of next year
const newYear = new Date('January 1, ' + nextYear + ' 00:00:00');

// Calculate the difference between the current date and new year in milliseconds
const diff = newYear.getTime() - today.getTime();

// Convert the milliseconds to days and round down
const daysTillNewYear = Math.floor(diff / (1000 * 60 * 60 * 24));

// Output the result
console.log('There are ' + daysTillNewYear + ' days till the new year.');
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