#86
Date manipulation
Data and Logic · Practitioner
What is this skill?
Date manipulation involves calculating dates (like "3 working days from now"), formatting dates for display, and comparing dates in your prototype logic. The date-fns library is commonly used for this.
Why is it important?
- Dynamic deadlines – Show realistic future dates based on today
- Date formatting – Display dates in the GOV.UK style (1 January 2024)
- Validation – Check if dates are in the past or future
- Calculations – Add or subtract days, months, or years