Mockdate provides a simple way to override the system's Date object in your JavaScript tests. This is invaluable for consistently testing date-dependent logic, ensuring that functions behave as expected regardless of the current time. By freezing the Date object to a specific point in time, you can create predictable and deterministic test outcomes, making assertions about date-based functionality reliable and repeatable across different environments. It supports unmocking the Date when no longer needed.
Mockdate, an npm package, exhibits irregular release patterns. Initial releases occurred in 2014 and 2015. More versions were published in 2016, 2017, 2019, 2020 and 2021, but since March 2021, there have been no new releases as of September 10, 2025.
Mockdate npm package downloads show a general upward trend from March 2024 to August 2025, peaking in June 2025. Downloads consistently surpassed 6 million from April 2024 onward, with a notable increase in 2025. September 2025 downloads are significantly lower, indicating incomplete data for the current month.
