This package provides TypeScript definitions for Sinon-Chai, enabling type checking and enhanced IDE support when using Sinon.js spies, stubs, and mocks with Chai. Sinon-Chai seamlessly integrates Sinon's assertion helpers into Chai's assertion library, making your tests more readable and maintainable. By installing these type definitions, you gain autocompletion, type safety, and improved discoverability for Sinon-Chai's assertion extensions within your TypeScript projects.
The npm package @types/sinon-chai has seen sporadic releases since 2016. Initial releases were infrequent, with bursts of activity in mid-2018 and late 2023. Two major version lines, "2.7.x" and "3.2.x" were maintained, with occasional simultaneous releases. The latest version 4.0.0 was released in September 2024. There have been no releases in 2025 up to August.
@types/sinon-chai downloads show a general upward trend from March 2024 to August 2025, peaking in June 2025. July and August had notable decreases. September 2025 downloads are significantly lower, but the month is still in progress, so it's not a complete picture.