ts-prune

Find potentially unused exports in your Typescript project with zero configuration.

Getting Started

ts-prune exposes a cli that reads your tsconfig file and prints out all the unused exports in your source files.

Install ts-prune with yarn or npm

# npm
npm install ts-prune --save-dev
# yarn
yarn add -D ts-prune

You can install it in your project and alias it to a npm script in package.json.

{
  "scripts": {
    "find-deadcode": "ts-prune"
  }
}

If you want to run against different Typescript configuration than tsconfig.json:

ts-prune -p tsconfig.dev.json

ts-prune supports CLI and file configuration via cosmiconfig (all file formats are supported).

-p, --project - tsconfig.json path(tsconfig.json by default)
-i, --ignore - errors ignore RegExp pattern
-e, --error - return error code if unused exports are found
-s, --skip - skip these files when determining whether code is used. (For example, .test.ts? will stop ts-prune from considering an export in test file usages)

CLI configuration options:

ts-prune -p my-tsconfig.json -i my-component-ignore-patterns?

Configuration file example ts-prunerc:

{
  "ignore": "my-component-ignore-patterns?"
}

ts-prune | wc -l

ts-prune | grep -v src/ignore-this-path

You can either,

// ts-prune-ignore-next
export const thisNeedsIgnoring = foo;

ts-prune | grep -v ignoreThisThroughoutMyCodebase