@jest/types provides TypeScript type definitions used extensively within the Jest testing framework. It offers a standardized set of interfaces and types for configuring Jest, defining test results, working with matchers, and more. This package enhances type safety and developer experience when extending or customizing Jest, ensuring consistency across various components of the framework and facilitating autocompletion and error detection within IDEs. Using @jest/types is crucial for building robust and well-typed Jest integrations.
@jest/types releases were frequent in 2019-2022, with peaks in early 2020 and late 2022. Release frequency significantly slowed down in 2023, with only occasional versions. There were no releases between October 2023 and May 2025. There were 2 new versions in June 2025 and one in July 2025. No releases in August and the first half of September 2025.
@jest/types downloads showed a generally upward trend from March 2024 to July 2025, peaking at over 413 million. August 2025 saw a decrease, and September 2025 downloads are significantly lower, but incomplete, representing only part of the month.
