@lmc-eu/eslint-config-react

LMC’s ESLint configuration for React projects

Installation

Wee need to install everything needed by the config using (installs package and also peer dependencies):

npx install-peerdeps --dev @lmc-eu/eslint-config-react

You can see in your package.json there are now a big list of devDependencies.

Configurations

@lmc-eu/eslint-config-react

Use this ruleset to configure ESLint to work with React code.

@lmc-eu/eslint-config-react/optional

Use this ruleset together with the above ruleset. Provides additional insights into potential inconsistencies in the project.

For new projects, it is recommended to enable this ruleset. For existing projects, it is only recommended for the brave.

Recommended ESLint Configuration

// .eslintrc.js

'use strict';

module.exports = {
  extends: ['@lmc-eu/eslint-config-react', '@lmc-eu/eslint-config-react/optional'],
};

.eslintrc or .eslintrc.json

{
  "extends": ["@lmc-eu/eslint-config-react", "@lmc-eu/eslint-config-react/optional"]
}

package.json

{
  "eslintConfig": {
    "extends": ["@lmc-eu/eslint-config-react", "@lmc-eu/eslint-config-react/optional"]
  }
}

It is also recommended that you lint the whole project folder (that is. npx eslint .) instead of just some folders (that is. npx eslint src test) and create an .eslintignore file excluding any unwanted lint folders. Doing so will allow new directories to be created without worrying about having to update your tools to lint the new directory.

# .eslintignore

node_modules

# NOTE:
# The following directives are only relevant when linting the whole
# project directory, ie. running `eslint .` ⚠️

# If you compile JavaScript into some output folder, exclude it here
dist

# Highly recommended to re-include JavaScript dotfiles to lint them
# (This will cause .eslintrc.js to be linted by ESLint 🤘)
!.*.js

# Some tools use this pattern for their configuration files. Lint them!
!*.config.js

License

See the LICENSE file for information.