options.md

id	title
options	Options

Introduction

All ts-jest specific options are located under the globals.ts-jest path of your Jest config:

// jest.config.js
module.exports = {
  // [...]
  globals: {
    'ts-jest': {
      // ts-jest configuration goes here
    },
  },
}

// OR package.json
{
  // [...]
  "jest": {
    "globals": {
      "ts-jest": {
        // ts-jest configuration goes here
      }
    }
  }
}

IDE ts-jest config suggestion

To utilize IDE suggestions, you can use JSDoc comments to provide suggested ts-jest configs for your Jest config:

/** @typedef {import('ts-jest/dist/types')} */
/** @type {import('@jest/types').Config.InitialOptions} */
const config = {
  // [...]
  globals: {
    'ts-jest': {
      // ts-jest configuration goes here and your IDE will suggest which configs when typing
    },
  },
}

module.exports = config

Options

All options have default values which should fit most of the projects. Click on the option's name to see details and example(s).

Option	Description	Type	Default
compiler	TypeScript module to use as compiler.	string	"typescript"
tsconfig or tsConfig(DEPRECATED)	TypeScript compiler related configuration.	string|object|boolean	auto
isolatedModules	Disable type-checking	boolean	disabled
astTransformers	Custom TypeScript AST transformers	object	auto
diagnostics	Diagnostics related configuration.	boolean|object	enabled
babelConfig	Babel(Jest) related configuration.	boolean|string|object	disabled
stringifyContentPathRegex	Files which will become modules returning self content.	string|RegExp	disabled