Vehicles Time Travel Utility

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library 10.0.23 ·javascript
verified May 27, 2026

Vehicles is a JavaScript/TypeScript testing utility designed to manipulate the system's time, enabling developers to 'travel into the future' for deterministic testing of time-sensitive code. It achieves this by mocking and controlling internal timers, such as `setTimeout`, `setInterval`, and `Date.now()`, allowing tests to execute scenarios involving time progression without actual real-time waits. The current stable version is 10.0.23, with a release cadence that appears to be frequent, primarily consisting of patch releases. Its key differentiator lies in providing a controlled environment for asynchronous operations and date-based logic, ensuring test reliability and speed. The package explicitly targets Node.js environments, requiring version 18.2.0 or higher.

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