ESLint configurations used at American Express.

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• Usage
• Contributing
• License
• Code of Conduct

npm install --save-dev eslint eslint-config-amex

The default config provides support for React applications. ESLint configs are also provided for:

• Jest
• Prettier

Install required peer dependencies before extending your ESLint config:

Jest:

npm install --save-dev typescript eslint-plugin-jest eslint-plugin-jest-dom

Prettier:

npm install --save-dev prettier eslint-plugin-prettier

To use the base config:

{
    "extends": "amex"
}

To use the Prettier compatible config:

{
    "extends": "amex/prettier"
}

⚠️ The amex eslint config enforces single quotes, while Prettier uses double quotes by default. Enabling the Prettier config will change all the quotes in your files. To avoid this, add a custom Prettier .prettierrc config:

{
    "singleQuote": true
}

{
    "extends": "amex/test"
}

If you are using Prettier use the prettier/test config:

{
    "extends": "amex/prettier/test"
}

This gives you the jest global and some jest specific rules.

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