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Eslint config: StandardJS, Typescript, Prettier

A simple eslint config for modern TypeScript projects.

This package configures eslint with:

For reference: ./eslint.js.



1. Install

Note: For an even "easier" install option, see eslint-config-nfour

yarn add -D eslint-config-standard-typescript-prettier

1.1 Install Peer Dependencies

Install all the peer dependencies listed in this projects package.json into your project.

This should do the trick:

npx install-peerdeps -o --dev --yarn eslint-config-standard-typescript-prettier

2. Configure

Add this to your package.json:

"eslintConfig": {
  "extends": ["standard-typescript-prettier"],
  "parserOptions": { "project": "./tsconfig.json" }
},
"prettier": "eslint-config-standard-typescript-prettier/prettier"

For other config recipes, see I want fine grained control

3. Bonus configure

Add the comment below to get type checks on your rules in a .eslintrc.js

/** @ts-check @type import('eslint-config-standard-typescript-prettier/types').TsEslintConfig */

FAQ

I want fine grained control

The packages exports a plain object, go nuts!

In an .eslintrc.js:

const config = require('eslint-config-standard-typescript-prettier');

module.exports = {
  ...config,
  parserOptions: { project: "./tsconfig.json" },
  rules: {
    ...config.rules,
    "@typescript-eslint/no-explicit-any": "error",
  },
};

Eslint might be changing their config, which is why a .eslintrc.js format is recommended.

More info: eslint/rfcs#9

In a .prettierrc.js:

module.exports = {
  ...require('eslint-config-standard-typescript-prettier/prettier'),
  semi: false, // This is how you turn off semicolons, by the way
}

Eslint cant find my files

On the CLI, eslint requires the --ext flag (currently):

eslint --ext .ts,.tsx .

I want linting to appear as warnings, not errors

By default, lint errors can become mixed with TypeScript errors during development.

eslint-plugin-only-warn is already included in this package, so do this:

{
  "plugins": ["only-warn"],
  "extends": ["standard-typescript-prettier"],
  "parserOptions": { "project": "./tsconfig.json" }
}

Want your lint warnings turned into errors?

yarn eslint --max-warnings 1

Project future

Javascript churn is real. This project will be kept up to date only for as long as configuration remains tedious.

Potential issues

The peerDependencies listed are versioned for compatibility. Because you maintain these dependencies in your project, you'll have to keep them all in sync or you could have issues.

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A simple eslint config for modern TypeScript projects.

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