Getting the current year is essential for dynamic copyright notices, age calculations, and year-based filtering in web applications. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented current year functionality in numerous footer components, date pickers, and analytics dashboards. From my expertise, the most reliable and precise solution is to use the getFullYear() method on a Date object. This approach returns the complete 4-digit year and automatically updates as time progresses, making it perfect for dynamic content.

Comparing dates is fundamental for validation, sorting, and implementing date-based business logic in web applications. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented date comparisons in countless components including calendars, data tables, and form validation. From my expertise, the most straightforward and reliable solution is to use standard comparison operators directly on Date objects. JavaScript automatically converts Date objects to timestamps for comparison, making this approach both simple and efficient.

Getting the current date in JavaScript is fundamental for timestamps, user interfaces, and date calculations in web applications. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented date handling in countless dashboard components and form controls. From my expertise, the most straightforward and reliable solution is to use the new Date() constructor without arguments. This method instantly returns a Date object representing the current moment in the user’s local timezone.

Determining the day of the week from a date is essential for scheduling applications, calendar components, and business logic that depends on weekdays. As the creator of CoreUI, a widely used open-source UI library, I’ve built numerous calendar and scheduling components that require precise weekday calculations. From my expertise, the most reliable solution is to use the getDay() method, which returns a number from 0-6 representing the day of the week. This method is consistent across all browsers and provides the foundation for both numeric and text-based weekday representations.

Converting numeric months to readable month names is crucial for user-friendly date displays, reports, and calendar interfaces. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented month name formatting in numerous date pickers and dashboard components across different languages. From my expertise, the most modern and localization-friendly solution is to use toLocaleDateString() with the month option. This approach provides automatic localization support and eliminates the need for hardcoded month arrays.

Subtracting days from dates is essential for calculating deadlines, creating date ranges, and implementing scheduling features in web applications. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented date subtraction in numerous dashboard components, reports, and calendar widgets. From my expertise, the most reliable solution is to use the setDate() method combined with getDate() to modify the date value. This approach automatically handles month boundaries, leap years, and other calendar complexities.

Adding days to dates is fundamental for calculating deadlines, scheduling events, and building calendar functionality in web applications. As the creator of CoreUI with over 25 years of development experience, I’ve implemented date calculations in countless scheduling components and business logic scenarios. The most reliable approach is using the setDate() method which automatically handles month boundaries, year transitions, and leap years. This native JavaScript method eliminates edge case bugs that plague manual date arithmetic.

Checking if a date represents today is crucial for filtering real-time data, highlighting current records, and implementing time-sensitive UI features. As the creator of CoreUI with over 25 years of development experience, I’ve built this functionality into dashboard components, activity feeds, and data filtering systems countless times. The most reliable approach is comparing toDateString() values which automatically ignores time components while maintaining timezone consistency. This method eliminates the complexity of manual date component comparisons and time-related edge cases.

Formatting dates as YYYY-MM-DD is crucial for database storage, API communication, and HTML date inputs across web applications. As the creator of CoreUI with over 25 years of development experience, I’ve handled date formatting in thousands of components and data processing scenarios. The most reliable and widely compatible approach is using toISOString() with string splitting to extract the date portion. This method ensures consistent ISO 8601 formatting regardless of timezone complexities.

Getting the current timestamp is essential for logging, performance measurement, and unique ID generation in JavaScript applications. As the creator of CoreUI with over 25 years of development experience, I’ve used timestamps extensively in production systems for tracking user interactions and measuring component performance. The most efficient and widely supported method is using the Date.now() static method. This approach provides milliseconds since Unix epoch with minimal overhead and maximum browser compatibility.