0.0.25 • Published 1 year ago
no-unused v0.0.25
no-unused
experimental, early stage of development
Finds unused properties in code utilizing TypeScript type system.
Usage
npx no-unused src/**/*.ts
Arguments:
pattern pattern for source files (omit to find automatically)
Options:
-V, --version output the version number
-i, --ignore [pattern] pattern for ignored files (default: "**/*.@(spec|test).*")
-I, --ignoreExports [pattern] pattern for files where exports are ignored
-p, --project [string] path to tsconfig.json (omit to resolve automatically)
-e, --errors emit tsc errors
-h, --help display help for command
Note: files matched with --ignore
won't be analyzed. Files containing .spec.
or .test.
are ignored by default to also find identifiers that are used only in tests.
Example
Source file:
const data = {name: 'John', surname: 'Smith'};
type Params = {a?: number; wat?: string};
const selector = ({a}: Params) => [a, data.name];
selector({});
Output:
src/example.ts:1:29 - message TS0: Unused identifier
1 const data = {name: 'John', surname: 'Smith'};
~~~~~~~
src/example.ts:3:28 - message TS0: Unused identifier
3 type Params = {a?: number; wat?: string};
~~~
Total: 2 unused identifiers
Ignoring unused app entrypoints
App entrypoints appear unused because they are meant to be used by external code. To ignore them:
Option 1
Use --ignoreExports entrypointsPattern
npx no-unused src/**/*.ts --ignoreExports 'src/entrypoint.ts,src/otherEntrypoints/*.ts'
Option 2
Add /** @public */
comment for exports used by external code:
/** @public */
export const renderApp = () => {...};
/** @public */
export const appConfig = {...};
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