A simple Jest transformer using esbuild.

Supports:

• mocks
• istanbul ignore comments, see below for details
• sync and async transformers
• Jest ESM mode

istanbul ignore comments should be defineds as multiline legal comments

/*! istanbul ignore next */

npm install --save-dev @cloudventure/jest-transformer-esbuild

yarn add -D @cloudventure/jest-transformer-esbuild

jest.config.json example:

{
    "transform": {
        "^.+\\.tsx?$": ["@cloudventure/jest-transformer-esbuild"]
    }
}

Please follow this guide for enabling ESM for Jest https://jestjs.io/docs/ecmascript-modules.

jest.config.json example:

{
    "transform": {
        "^.+\\.tsx?$": ["@cloudventure/jest-transformer-esbuild"]
    },
    "extensionsToTreatAsEsm": [".ts", ".tsx"]
}