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

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

• gatsby-material-starter
• DestinyItemManager

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

You can either,

ts-prune --ignore 'src/ignore-this-path'

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

You can either,

ts-prune --ignore 'src/ignore-this-path|src/also-ignore-this-path'

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

You can either,

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

ts-prune | grep -v ignoreThisThroughoutMyCodebase

• The excellent ts-morph library. And this gist by @dsherret.

Nadeesha Cabral	Snyk bot	Dan Vanderkam	Josh Goldberg	Vitaly Iegorov	Amir Arad
David Graham	Davis Ford	Ivo Raisr	Kristján Oddsson	Simon Jang	The Gitter Badger
Tim Bodeit	Tim Saunders	Torkel Rogstad	Victor Nogueira	William Candillon	phiresky