esbuild-jest-fixed

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library 0.5.2 ·javascript
verified May 1, 2026

A Jest transformer leveraging esbuild for fast TypeScript, JavaScript, TSX, and JSX compilation. Version 0.5.2 is the latest stable release; the project is a fork of esbuild-jest that resolves a critical bug where source code containing the substring "ock(" (e.g., "mock(") would cause compilation failures. It supports configurable jsxFactory, jsxFragment, sourcemap, loaders, target, and format options, and is designed as a drop-in replacement for ts-jest with significantly faster transpilation. Requires esbuild >=0.9.3 as a peer dependency. The package ships TypeScript type definitions.

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