jest-esbuild
JSON →A Jest transformer that uses esbuild to compile TypeScript/JavaScript files during test execution. Current stable version is 0.4.0, released in 2021 with no recent updates (maintenance mode). It provides fast compilation by leveraging esbuild's speed, significantly faster than ts-jest. It requires Jest 27+ and supports ESM/CJS via esbuild's loader. Key differentiator: minimal configuration and speed compared to ts-jest or babel-jest. Not recommended for projects needing type checking, as esbuild strips types without validation.
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