Ornikar eslint config

Based on Airbnb.

This is the config to use when you don't have babel on the project.

Also see:

• @ornikar/eslint-config-babel
• @ornikar/eslint-config-react
• @ornikar/eslint-config-typescript
• @ornikar/eslint-config-typescript-react

1. npm install --save-dev eslint @ornikar/eslint-config
2. Add "extends": ["@ornikar/eslint-config/root"] to your eslint config

1. npm install --save-dev eslint @ornikar/eslint-config
2. Add "extends": ["@ornikar/eslint-config", "@ornikar/eslint-config/node"] to your eslint config

1. npm install --save-dev eslint @ornikar/eslint-config @ornikar/eslint-config-babel
2. Add "extends": ["@ornikar/eslint-config-babel", "@ornikar/eslint-config/node""] to your eslint config

1. npm install --save-dev eslint @ornikar/eslint-config @ornikar/eslint-config-typescript
2. Add "extends": ["@ornikar/eslint-config-typescript", "@ornikar/eslint-config/node"] to your eslint config

{
  "root": true,
  "extends": ["@ornikar/eslint-config/root"],
  "overrides": [
    {
      "files": ["test-setup.js"],
      "extends": ["@ornikar/eslint-config/node-module-override"]
    }
  ]
}

In a project you should have two configurations files:

• /.eslintrc.json
• /{src,lib}/.eslintrc.json

If the project is compiled, use src for source and dist for compilation with rollup. If the project is not compiled, use lib. If the project is CRA, next or build with webpack, use src for source and build or the build directory your tool uses.

Using two config files is important:

• the root eslintrc is for config files and scripts. It should allow dev dependencies
• the source eslintrc is for your source and tests files.

Both the configuration shoud set "root": true to prevent eslint to merge the config file with other higher eslintrc configs. See Cascading and hierarchy in eslint config documentation.

The advantage of using 2 config files is to avoid overriding rules set for root. For example, root config should use plugin node, but not always your source config !

Use ignorePatterns instead of .eslintignore file. We have enough configuration files !

Really usefull tip, it prevents leaving unused eslint-disable directives.

Assuming your package.json looks like "workspaces": ["packages/*"]:

• /.eslintrc.json
• /packages/*/{src,lib}/.eslintrc.json